Free Printable Acid Base Salt

1.

An acid is defined as

a)

A proton acceptor

b)

A proton donor

c)

A sour tasting molecule

d)

An ionic compound

2.

A concentrated acid when compared to a dilute sample of the same acid...

a)

Has more molecules of acid dissolved in a given volume of water

b)

Has a lower pH

c)

Has a higher pH

d)

Has fewer molecules of acid dissolved in a given volume of water

3.

A base is...

a)

A substance that reacts with an acid to form a salt

b)

A musical instrument

c)

A proton donor

d)

An H⁺ ion

4.

An alkali is...

a)

insoluble in water

b)

A water soluble base

c)

the same as an acid

d)

an indigestion tablet

5.

Methyl orange is what colour in an acid?

a)

green

b)

blue

c)

orange

d)

red

6.

phenolphthalein at pH 4 is

a)

pink

b)

purple

c)

clear

d)

colourless

7.

universal indicator is green at pH

a)

2

b)

5

c)

7

d)

11

8.

blue litmus paper will remain blue when

a)

added to an acid

b)

added to an alkali

c)

added to water

d)

added to a neutral substance

9.

Arrhenius acids __________.

a)

dissociate to make H⁺ions in solution

b)

dissociate to make OH^-ions in solution

c)

are proton acceptors

d)

have pH values higher than 7

10.

Which of the following products would result from NH₃ acting as a bronsted base when reacting with water:

NH₃ + H₂O --> ____________

a)

NH₄ + OH

b)

NH₄⁺ + OH^-

c)

NH₂ + H₃O

d)

NH₂^- + H₃O⁺

11.

The process of adding a known solution to determine the concentration of another, unknown solution is called ____.

a)

combustion

b)

hydrolysis

c)

titration

d)

indication

12.

HSO₄^-(aq)+H₂O(l) → H₃O⁺(aq)+SO₄^2-(aq)
Identify the Acid in the above reaction.

a)

HSO₄^-

b)

H₂O

c)

H₃O⁺

d)

SO₄^2-

13.

What type of oxide is:

Copper (II) Oxide

a)

Amphoteric Oxide

b)

Basic Oxide

c)

Neutral Oxide

d)

Acidic Oxide

14.

What type of oxide is:

Carbon monoxide

a)

Amphoteric Oxide

b)

Basic Oxide

c)

Neutral Oxide

d)

Acidic Oxide

15.

Amphoteric oxides are substances that

a)

Reacts with acids only

b)

Reacts with bases only

c)

Reacts with acids and bases

d)

Do not react with acids or bases

16.

A metal oxide and an acid reacted together to form zinc chloride and water. What were the metal oxide and the acid?

a)

Zinc oxide and hydrochloric acid

b)

Zinc metal and hydrochloric acid

c)

Zinc oxide and sulfuric acid

d)

Zinc chloride and zinc oxide

17.

Select the amphoteric oxides.

a)

aluminium oxide

b)

carbon dioxide

c)

lead(II) oxide

d)

potassium oxide

e)

zinc oxide

18.

What type of oxide is:

Nitrogen Dioxide

a)

Amphoteric Oxide

b)

Basic Oxide

c)

Neutral Oxide

d)

Acidic Oxide

19.

What type of oxide is:

Potassium oxide

a)

Amphoteric Oxide

b)

Basic Oxide

c)

Neutral Oxide

d)

Acidic Oxide

20.

Which method can be used to prepare insoluble salts?

a)

add excess solid reagents to acid

b)

precipitation

c)

titration

21.

Select the salts that can be prepared by precipitation.

a)

sodium chloride

b)

silver chloride

c)

lead(II) chloride

d)

magnesium chloride

e)

zinc chloride

22.

Which of the following briefly summarize the correct sequence of precipitation method?

a)

dry, filter, mix, wash

b)

filter, wash, mix, dry

c)

mix, filter, wash, dry

d)

wash, mix, filter, dry

23.

Select the reagents that can be used to prepare zinc chloride.

a)

hydrochloric acid

b)

sulfuric acid

c)

zinc oxide

d)

zinc hydroxide

e)

zinc carbonate

24.

Select the salts that can be prepared by reacting excess solid reagents with acid.

a)

potassium sulfate

b)

calcium sulfate

c)

copper(II) sulfate

d)

lead(II) sulfate

e)

iron(II) sulfate

25.

Why we cannot use the element copper itself to react it with acid?

a)

It is too dangerous to perform since copper is very reactive

b)

Copper takes very long to react

c)

There won't be a reaction since copper is unreactive

26.

which reaction are true

a)

Metal + acid –> salt + water

b)

Metal oxide + acid –> salt + water

c)

Metal carbonate + acid –> salt + water + carbon dioxide

d)

Metal carbonate + acid –> salt + water + hydrogen

27.

How would you prepare a sample of potassium chloride safely in the laboratory?

a)

Add excess potassium metal to dilute hydrochloric acid

b)

Titrate dilute HCl with aqueous KOH with an indicator

c)

Titrate dilute HCl with aqueous KOH once with indicator, then again without

d)

Mix aqueous potassium nitrate with aqueous sodium chloride

28.

Which of the following methods is used to prepare zinc sulfate?

a)

Add excess zinc chloride to aqueous sodium sulfate

b)

Tiltrate dilute H₂SO₄ with aqueous Zn(OH)₂with an indicator, then again without

c)

Add excess solid zinc oxide to dilute sulfuric acid

d)

Mix aqueous zinc nitrate with aqueous potassium sulfate

29.

After adding aqueous Ca(NO₃)₂ to dilute H₂SO₄, what is my next step to prepare a sample of CaSO₄?

a)

Crystallisation

b)

Evaporation to dryness

c)

Filtration to get the filtrate

d)

Filtration to get the residue

30.

Sodium, Potassium and Ammonium salts are insoluble

a)

TRUE

b)

FALSE

31.

Are all nitrates soluble?

a)

YES

b)

NO

32.

Which method is used to prepare soluble salts from Group 1?

a)

Electrolysis

b)

Titration

c)

Haber Process

d)

Precipitation method

33.

All chlorides are soluble

a)

TRUE

b)

FALSE

34.

Which type of ion does a base produce when it is dissolved in water?

a)

oxide

b)

oxygen

c)

hydrogen

d)

hydroxide

35.

Which of the following statements best define the term ‘salt’?

a)

Salt is formed when metal reacts with an alkali.

b)

Salt contains sodium ions and chloride ions.

c)

Salt is formed from a weak Van der Waals’ forces of attraction.

d)

Salt is formed when the hydrogen ions in an acid is replaced by metal or ammonium ions.

36.

Using solution X, a student successfully tested for the presence of chloride ions. What is solution X and the result of the test?

a)

solution X is dilute sulphuric acid and the result is a yellow precipitate

b)

solution X is dilute sulphuric acid and the result is a white precipitate

c)

solution X is silver nitrate solution and the result is a yellow precipitate

d)

solution X is silver nitrate solution and the result is a white precipitate

37.

When dilute acid was added to an unknown sample, effervescence was observed. Which anion is present?

a)

ammonium ion

b)

carbonate ion

c)

nitrate ion

d)

sulfate ion

38.

As a gas was bubbled through limewater, this was observed. What is the identity of the gas?

a)

hydrogen

b)

ammonia

c)

oxygen

d)

carbon dioxide

39.

A colourless pungent gas turns damp red litmus paper blue. What is the identity of the gas?

a)

hydrogen

b)

ammonia

c)

oxygen

d)

carbon dioxide

40.

When dilute nitric acid, followed by barium nitrate solution was added to an unknown sample, a white precipitate was observed. Which anion is present?

a)

chloride ion

b)

carbonate ion

c)

nitrate ion

d)

sulfate ion

41.

Adding sodium hydroxide followed by Al foil to an unknown solution, and warming it, is a test for which anion?

a)

ammonium ion

b)

carbonate ion

c)

nitrate ion

d)

sulfate ion

42.

This is the setup to test for which gas?

a)

hydrogen

b)

ammonia

c)

oxygen

d)

carbon dioxide

43.

What is the chemical name for limewater?

a)

sodium hydroxide

b)

calcium hydroxide

c)

potassium hydroxide

d)

ammonium hydroxide

44.

What is the colour of anhydrous copper sulphate?

a)

Blue

b)

Green

c)

White

d)

bluish green

45.

A compound is a hydrate when it...

a)

is composed of only hydrogen and oxygen

b)

is a state of water

c)

traps water inside of the compound

d)

repels water from the compound

46.

What is the best method for removing water from a hydrated compound?

a)

freezing

b)

filtration

c)

distillation

d)

heating

47.

Name the following ionic compound: MgSO₄*7H₂O

a)

magnesium sulfate * hexahydarte

b)

magnesium sulfate hexahydarte

c)

magnesium sulfate heptahydrate

d)

magnesium sulfate* heptahydrate

48.

Which of the following causes alkaline properties of aqueous ammonia solution?

a)

NH₃

b)

NH₄⁺

c)

OH^-

d)

H⁺

49.

Which statement is CORRECT about an acid?

a)

Has bitter taste and feels slippery

b)

Acid solution cannot conduct electricity

c)

Acid solution contains only hydrogen ions

d)

Substance that ionises in water to produce hydrogen ions

50.

Which substance is an alkali?

a)

zinc oxide

b)

magnesium oxide

c)

calcium hydroxide

d)

aluminium hydroxide

51.

Which of the following pH values is for strong acid solution?

a)

pH 14

b)

pH 11

c)

pH 5

d)

pH 1

52.

What is the pH value for 0.25 mol dm^-3 of strong acid solution?

a)

0.5

b)

0.6

c)

0.7

d)

0.8

53.

Which of the following is TRUE about weak acid?

a)

unable to neutralise alkali

b)

pH value is more than 7

c)

able to change red litmus paper to blue

d)

ionises partially in water to produce hydrogen ions

54.

Which of the following ionises partially in water?

a)

HNO₃

b)

HCl

c)

NaOH

d)

NH₃

55.

What is the number of moles in 200 cm³ of 1.0 mol dm^-3 of hydrochloric acid?

a)

0.002 mol

b)

0.02 mol

c)

0.2 mol

d)

2.0 mol

56.

What is meant by standard solution?

a)

a solution with large amount of solute in small amount of solvent

b)

a solution with small amount of solute in large amount of solvent

c)

a solution with a known concentration

d)

a solution with excess amount of solute

57.

Shahid is stung by a bee. Which if the following substances is the MOST suitable to be applied to the affected area to treat Shahid?

a)

vinegar

b)

bicarbonate of soda

c)

cooking oil

d)

lemon

58.

Which of the following is NOT the physical properties of a crystal?

a)

different crystals have different geometrical shapes

b)

has flat surfaces, straight sides and sharp vertices

c)

does not have fixed angle between two adjacent surfaces

d)

same crystal of different sizes have the same geometrical shapes

59.

Which of the following salts is SOLUBLE in water?

a)

silver chloride

b)

barium sulphate

c)

magnesium carbonate

d)

zinc sulphate

60.

What is the pH scale used for?

a)

Calculating the volume of a solution

b)

Measuring temperature in a solution

c)

Determining the color of a solution

d)

Measuring the acidity or alkalinity of a solution

61.

How can you balance the equation HCl + NaOH -> NaCl + H2O?

a)

HCl + NaOH -> NaCl + O2

b)

H2O + NaCl -> HCl + NaOH

c)

2HCl + NaOH -> NaCl + H2O

d)

2HCl + 2NaOH -> 2NaCl + 2H2O

62.

Define acid in terms of its properties.

a)

A substance that is neutral in pH.

b)

A substance that donates a proton in a chemical reaction.

c)

A substance that accepts a proton in a chemical reaction.

d)

A substance that is always a solid at room temperature.

63.

Define base in terms of its properties.

a)

A base is a substance that can accept electrons

b)

A base is a substance that can donate pairs of protons

c)

A base is a substance that can accept protons or donate pairs of electrons.

d)

A base is a substance that can donate protons

64.

What is the common characteristic of all salts?

a)

Covalent compound composed of cations and anions

b)

Metallic compound composed of cations and anions

c)

Organic compound composed of cations and anions

d)

Ionic compound composed of cations and anions

65.

What is the pH value of a neutral solution?

a)

8

b)

7

c)

5

d)

10

66.

Balance the equation H2SO4 + Ca(OH)2 -> CaSO4 + H2O.

a)

H2SO4 + Ca(OH)2 -> Ca2SO4 + H2O

b)

H2SO4 + Ca(OH)2 -> CaSO4 + H2O2

c)

H2SO4 + Ca(OH)2 -> CaSO4 + H2O

d)

H2SO4 + Ca(OH)2 -> CaSO4 + 2H2O

67.

Give an example of a strong acid.

a)

Nitric acid (HNO3)

b)

Hydrochloric acid (HCl)

c)

Sulfuric acid (H2SO4)

d)

Acetic acid (CH3COOH)

68.

Give an example of a weak base.

a)

Sodium hydroxide

b)

Hydrochloric acid

c)

Carbon dioxide

d)

Ammonia (NH3)

69.

What is the pH value of a solution with a high concentration of H+ ions?

a)

pH = 7

b)

pH > 7

c)

pH = 0

d)

pH < 7

70.

What happens to the pH value when an acid is added to a basic solution?

a)

pH value becomes neutral

b)

pH value decreases

c)

pH value remains the same

d)

pH value increases

71.

What is the role of litmus paper in testing for acids and bases?

a)

Litmus paper changes color to indicate whether a substance is acidic or basic.

b)

Litmus paper measures the temperature of acids and bases.

c)

Litmus paper dissolves when in contact with acids or bases.

d)

Litmus paper emits a sound when exposed to acids or bases.

72.

What is the chemical formula for hydrochloric acid?

a)

H2Cl

b)

HCl

c)

H2O2

d)

HOCl

73.

What is the chemical formula for sodium hydroxide?

a)

H2O

b)

CO2

c)

NaOH

d)

HCl

74.

What is the chemical formula for common salt?

a)

H2O

b)

NaCl

c)

HCl

d)

CO2

75.

Explain the concept of pH in relation to acids and bases.

a)

pH measures the temperature of a solution

b)

pH is a measure of the acidity or basicity of a solution, ranging from 0 to 14. Values below 7 are acidic, 7 is neutral, and above 7 are basic.

c)

pH above 7 indicates acidity

d)

pH values range from -1 to 15

76.

What is the pH value of a solution with a low concentration of H+ ions?

a)

Negative

b)

Below 7

c)

Exactly 7

d)

Above 7

77.

What is the pH value of a solution with a high concentration of OH- ions?

a)

pH value < 7

b)

pH value > 7

c)

pH value = 0

d)

pH value = 7

78.

What is the pH value of a solution with a pH of 3?

a)

5

b)

6

c)

4

d)

3

79.

How does the strength of an acid or base affect its pH value?

a)

The strength of an acid or base affects its pH value by influencing the concentration of H+ or OH- ions in the solution.

b)

The pH value of an acid or base is solely dependent on its temperature

c)

The strength of an acid or base has no effect on its pH value

d)

The pH value of an acid or base is determined by its color

80.

Aqueous solution of baking soda is bitter in taste and feels soapy on touching because it contains (a)

81.

The solutions which do not change the colour of either blue or red litmus are called (a) solutions.

82.

The correct way of making a solution of acid in water is to (a)

83.

Sodium bicarbonate is commonly called

a)

Lime water

b)

Slaked lime

c)

Washing soda

d)

Baking soda

84.

Which medicines are used for treating indigestion?

a)

Antibiotic

b)

Analgesic

c)

Antacids

d)

Antiseptic

85.

Define neutralization reaction with an example.

4 lines

86.

What are salts? Give example.

4 lines

87.

Define indicators along with examples.

4 lines

88.

Rena is trying to wash turmeric stain on her cloth with soap, she noticed the stain colour changed to red, explain why?

4 lines

89.

List any three uses of Ammonium hydroxide.

4 lines

90.

metal oxides are generally

a)

acidic in nature

b)

basic in nature

c)

neutral

d)

some may be acidic some may be basic

91.

H2SO4 is Aciidic in

a)

in gaseous state

b)

in benzene solution

c)

in aqueous solution

d)

In all Format

92.

Litmus solution is purple colured dye extracted from (a) plant

93.

If you have a solution that is very acidic with a pH of 3.5, what can you do to raise the pH?

a)

add more acid

b)

add more water

c)

increase the temperature

d)

add a base

94.

Which of the following substance is Neutral in Nature?

a)

Hydrochloric Acid

b)

Glucose

c)

Sodium Hydroxide

d)

Calcium Carbonate

95.

Name the Acid released by the bite of an Ant

a)

Oxallic acid

b)

Mallic acid

c)

Formic acid

d)

Citric acid

96.

Which of the following is Natural Indicator for Acid & Base

a)

Methyl orange

b)

Universal Indicator

c)

China Rose

d)

None of the above

97.

Name the Acidd present in Apple

a)

Citric acid

b)

Mallic acid

c)

Oxalic acid

d)

Tartaric acid

98.

Which of the Following acid is not stored in Glass Bottles

a)

HCl

b)

HNO₃

c)

HF

d)

H₂SO₄

99.

Name the 2 Major Gases that are Responsble for Production of ACID RAIN

(a)

100.

Write the Common name of Calcium Carbonate

(a)

101.

Name the Base used in making for making Slaked lime

(a)

102.

Used in treatment of Sewage water

a)

Calcium oxide

b)

Calcium Hydroxide

c)

Calcium Carbonate

d)

Ammonium Hydroxide

103.

Which of the following base absorbs Carbon dioxide (CO₂)

a)

Mg(OH)₂

b)

CuSO₄

c)

KOH

d)

NaoH

104.

Common Name of Calcium sulphate is

a)

Calcium Carbonate

b)

Baking soda

c)

Sodium Carbonate

d)

Gypsum

105.

Which of the following is a weak Base

a)

Potassium Hydroxide

b)

Zinc Carbonate

c)

Sodium Bicarbonate

d)

Sodium Hydroxide

106.

Name the Product, when a Strong Acid & a Strong Base reacts?

a)

Neutral salt and water

b)

Acidic Salt

c)

Basic salt

d)

Acidic and Basic salt both

107.

To delay the curdling of milk, which of the following base is added to it

a)

Citric Acid

b)

Baking soda

c)

Sodium hydroxide

d)

Potassium hydroxide

108.

How is water formed in the Neutralization reaction?

a)

From the H⁺ of acid and OH^- of acid

b)

From the H⁺ of base and OH^- of acid

c)

From the H⁺ of acid and OH^- of base

d)

From the H⁺ of base and OH^- of base

109.

The organic acid present in Tomato is

a)

Oxalic acid

b)

Lactic acid

c)

Malic Acid

d)

Tartaric acid

110.

Name the Acid Present in the Tomato

a)

Oxalic Acid

b)

Acetic Acid

c)

Tartaric Acid

d)

Citric Acid

111.

Doctor's are used for supporting fractured bones

a)

Calcium Sulphate Decahydrate

b)

Calcium Sulphate Trihidrate

c)

Calcium Sulphate Hemihydrate

d)

Calcium Carbonate

112.

Gypsum on heating at 373 K produce

a)

Plaster of Rome

b)

Plaster of Gypsum

c)

Plaster of Paris

d)

Plaster of India

113.

Dilute Hydrochloric Acid reacts with Zinc metal produce gas

a)

Chlorine Gas

b)

Hydrogen Gas

c)

Oxygen

d)

Dihydrogen Gas

114.

Which of the following Acid is present in sour milk ?

a)

Formic Acid

b)

Glycolic Acid

c)

Lactic Acid

d)

Tartaric Acid

115.

The Acid used in making of vinegar is

a)

Formic Acid

b)

Nitric Acid

c)

Sulpuric Acid

d)

Acetic Acid

116.

When CO2 is passed through lime water, it turns milky. The milkiness is due to formation of

a)

CaOH₂

b)

H₂O₂

c)

CO₂

d)

CaCO₃

117.

CuO + (X) ----> CuSO₄ + H₂O, Here (X) is

a)

CuSO₄

b)

HCl

c)

H₂SO₄

d)

HNO₃

118.

Antacids Contain

a)

String Base

b)

Weak Acid

c)

Weak Base

d)

Strong Acid

119.

Reaction of an Acid with a Base is known as

a)

Decomposition

b)

Combination

c)

Redox Reaction

d)

Neutralization

120.

Which of the following acid does not react with metals

a)

Sulphuric Acid

b)

Phosphoric Acid

c)

Carbonic Acid

d)

Nitric Acid

121.

Washing Soda has the formula

a)

Na₂CO₃.2H₂O

b)

Na₂CO₃.H₂O

c)

Na₂CO₃.10H₂O

d)

Na₂CO₃

122.

Which of the following is acidic in nature

a)

Slaked lime

b)

Soap solution

c)

Apple juice

d)

Lime

123.

2NaOH + MgSO₄ ----->

a)

MgO + Na₂SO₄

b)

Mg(OH)₂ + Na₂SO₄

c)

Mg(OH)₂ + Na₂O

d)

MgO + Na₂O

124.

Plaster of Paris hardens by

a)

giving of CO₂

b)

changing into CaCO₃

c)

combining with water

d)

giving out water

125.

All acids contain:

a)

(a) Carbon

b)

(b) Sulphur

c)

(c) Hydrogen

d)

(d) Iron

126.

Which metallic hydroxide is used as antacid of the following ?

a)

(a) Magnesium hydroxide

b)

(b) Calcium hydroxide

c)

=(c) Sodium hydroxide

d)

(d) Copper hydroxide

127.

Which chemical enters the skin when an ant bites?

a)

(a) Acetic acid

b)

(b) Caustic soda

c)

(c) Formic acid

d)

(d) Potassium oxide

128.

Which one is the base from the following compounds?

a)

(a) K₂SO₄

b)

(b) NaHCO₃

c)

(c) Ca Cl₂

d)

(d) CaO

129.

Acid present in a lemon, an orange & other sour fruits is:

a)

(a) Latic acid

b)

(b) Citric acid

c)

(c) Formic acid

d)

(d) Ascorbic acid

130.

When an acid reacts with a base it is known as?

a)

(a) Substitution reaction

b)

(b) Strong reaction

c)

(c) Neutralization reaction

d)

(d) Decomposition reaction

131.

Which one of the following types of medicines is used for indigestion?

a)

(a) Antibiotic

b)

(b) Antacid

c)

(c) Analgesic

d)

(d) Antiseptic

132.

Which one of the following compounds is a main constituent of washing powder?

a)

(a) Sodium chloride

b)

(b) Sodium carbonate

c)

(c) Sodium hydroxide

d)

(d) Bleaching powder

133.

Plaster of Paris is a salt of:

a)

(a) Potassium

b)

(b) Copper

c)

(c) Sodium

d)

(d) Calcium

134.

Sulphuric acid is a ………………..

a)

(a) Strong acid

b)

(b) Weak acid

c)

(c) Strong base

d)

(d) Neither strong nor weak

135.

The compound that gives OH^-ions if is dissolved in water is:

a)

(a) Acid

b)

(b) Base

c)

(c) Salt

d)

(d) Indicator

136.

Which one is conc acid among them ?

a)

(a) HNO₃

b)

(b) CH₃COOH

c)

(c) NH₄OH

d)

(d) NaHSO₄

137.

Which one is conc base among them ?

a)

(a) NH₄OH

b)

(b) NaOH

c)

(c) Mg(OH)₂

d)

(d) Cu(OH)₂

138.

A chemical can change a red litmus to blue then What is the pH value of it ?

a)

(a) 5

b)

(b) 7

c)

(c) 9

d)

(d) 2

139.

Phosphoric acid has formula

a)

(a) H₂PO₃

b)

(b) H₂PO₄

c)

(c) H₃PO₄

d)

(d) H₃PO₃

140.

Which of the following is known as the best indicator of all ?

a)

(a) litmus indicator

b)

(b) universal indicator

c)

(c) methyl orange indicator

d)

(d) Phenolphthalein indicators

141.

In P^H scale P^H of 7 is shown through a color of

a)

(a) red

b)

(b) blue

c)

(c) green

d)

(d) yellow

142.

Acid shows red color with

a)

(a) litmus indicator

b)

(b) universal indicator

c)

(c) methyl orange indicator

d)

(d) all of these

143.

Onion juice is

a)

(a) Acidic

b)

(b) alkaline

c)

(c) neutral

d)

(d) basic

144.

Which is soluble salt in water?

a)

(a) AgCl

b)

(b) PbCl₂

c)

(c) HgCl₂

d)

(d) None of these

145.

H₂SO₃ is formula of

a)

(a) Sulfatic acid

b)

(b) Sulfuric acid

c)

(c) Sulfourous acid

d)

(d) Sulphate acid

146.

pH is an abbreviation of

a)

(a) philosophy of humans

b)

(b) power of humans

c)

(c) potential of hydrogen

d)

(d) power of hydroxonium ion

147.

Potassium oxide is a/an

a)

(a) acidic oxide

b)

(b) basic oxide

c)

(c) amphoteric oxide

d)

(d) neutral oxide

148.

Phenolphthalein in acidic solution is

a)

(a) colorless

b)

(b) pink colored

c)

(c) yellow colored

d)

(d) orange colored

149.

Which of the following is salt among them?

a)

(a) HCl

b)

(b) KCl

c)

(c) HNO₃

d)

(d) H₃PO₄

150.

What is colour of Phenolphthalein in basic solution?

a)

(a) Yellow

b)

(b) Blue

c)

(c) Pink

d)

(d) Colourless

151.

Reaction of acid and metal gives

a)

(a) Salt and water

b)

(b) Salt and hydrogen

c)

(c) Salt, carbon dioxide and water

d)

(d) Salt and salt

152.

Which of the following decreases when pH is less than 7?

a)

(a) [H⁺]

b)

(b) [OH^-]

c)

(c) Na+

d)

(d) None of these

153.

Which types of reaction always forms a salt and water ?

a)

(a) exothermic

b)

(b) combination

c)

(c) neutralization

d)

(d) decomposition

154.

Which of the following is used in fire extinguisher?

a)

(a) Sodium hydroxide

b)

(b) Sodium bicarbonate

c)

(c) Potassium sulphate

d)

(d) Calcium chloride

155.

What is the chemical name of washing soda?

a)

(a) Sodium carbonate

b)

(b) Sodium bicarbonate

c)

(c) Potassium carbonate

d)

(d) Calcium carbonate

156.

Which of the gas is responsible for acid rain of the following?

a)

(a) Oxygen

b)

(b) Nitrogen

c)

(c) Carbon dioxide

d)

(d) Chlorine

157.

What is the nature of metal oxide?

a)

(a) Basic

b)

(b) Acidic

c)

(c) Neutral

d)

(d) None of the above

158.

Which of the acid is found in milk?

a)

(a) Citric acid

b)

(b) Lactic acid

c)

(c) Tartaric acid

d)

(d) Sulphuric acid

159.

What happens when a dry blue litmus paper is touched to acid powder?

a)

(a) turns red

b)

(b) turns green

c)

(c) turns blue

d)

(d) No change

160.

Which of the following does show reduction reaction?

a)

(a) Gain of oxygen

b)

(b) Loss of oxygen

c)

(c) Loss of hydrogen

d)

(d) None of the above

161.

What is the name of substance which does get deposited over iron because of moisture present in air?

a)

(a) Sulphide

b)

(b) Rust

c)

(c) Carbonate

d)

(d) Oxygen

162.

Which of following is known as milk of magnesia?

a)

(a) NH₄OH

b)

(b) KOH

c)

(c) NaOH

d)

(d) Mg(OH)₂

163.

Hydrogen burns with pop sound in the presence of :

a)

(a) Argon

b)

(b) oxygen

c)

(c) nitrogen

d)

(d) Sulphur dioxide

164.

Sodium carbonate is a basic salt because it is a salt of

a)

(a) strong acid and strong base

b)

(b) weak acid and weak base

c)

(c) strong acid and weak base

d)

(d) weak acid and strong base

165.

Lime water is

a)

(a) CaO

b)

(b) Ca(OH)₂

c)

(c) CaCO₃

d)

(d) CaCI₂

166.

In pure water, concentrations of

a)

(a) H⁺ and OH^- ions are equal

b)

(b) H⁺ ions is more

c)

(c) OH^- ions is more

d)

(d) Cl^- is more

167.

What is main component of digestive juice in stomach?

a)

(a) Hydrochloric acid

b)

(b) Sulphuric acid

c)

(c) Saliva

d)

(d) Water

168.

Who coined the name catalyst?

a)

(a) Berzeleous

b)

(b) Rutherford

c)

(c) Louis

d)

(d) Kosell

169.

Which catalyst is used in the production of ammonia through the Haber's process ?

a)

(a) Nickel

b)

(b) Iron

c)

(c) Platinum

d)

(d) Sodium

170.

Name an element which is common to all acids?

a)

(a) sulphur

b)

(b)Chlorine

c)

(c) Notrogen

d)

(d) Hydrogen

171.

Name an acid which contains both oxygen and hydrogen of the following ?

a)

(a) hydrochloric acid

b)

(b) dilute acid

c)

(c) concentrated acid

d)

(d) sulphuric acid

172.

In the following reaction, identify the salt formed

NH₄OH (aq) + H₂SO₄(aq) → …………............ + 2H₂O (l)

a)

(a) NH₄NO₃

b)

(b) (NH₄)₂SO₄

c)

(c) (NH₄)₃PO₄

d)

(d) (NH₄)₂S

173.

Which one is not a base?

a)

(a) NaOH

b)

(b) HNO₃

c)

(c) Ca(OH)₂

d)

(d) NH₄OH

174.

pH of four solutions A, B, C and D are 2, 7, 8 and 6 respectively. The correct increasing order of acidity of these solutions is

a)

(a) D < C < B < A

b)

(b) C < B < A< D

c)

(c) C < B < D < A

d)

(d) A < B < C< D

175.

Sulphuric acid was discovered by

a)

(a) Jabir bin hayyan

b)

(b) Al razi

c)

(c) Al beruni

d)

(d) Berzellius

176.

Aqua regia is a 1: 3 mixture, by volume, of :

a)

(a) conc. nitric acid and conc. hydrochloric acid

b)

(b) conc. hydrochloric acid and conc. nitric acid

c)

(c) conc. nitric acid and conc. sulphuric acid

d)

(d) conc. sulphuric acid and conc. nitric acid

177.

Sweat contains water and :

a)

(a) Citric acid

b)

(b) Lactic acid

c)

(c) Salt

d)

(d) Vinegar

178.

Ascorbic acid (Vitamin C) is present in ……….

a)

(a) Milk

b)

(b) Tea

c)

(c) Ants

d)

(d) Citrus fruits

179.

nitric acid + magnesium carbonate --> ..........+...........+............

a)

magnesium nitrate + water

b)

magnesium oxide + water

c)

magnesium oxide + water + hydrogen

d)

magnesium nitrate + water + carbon dioxide

180.

which salt will be formed by the reaction of nitric acid with zinc carbonate?

a)

zinc chloride

b)

zinc sulfate

c)

zinc nitrate

d)

zinc oxide

181.

which gas is formed when calcium carbonate reacts with hydrochloric acid?

a)

calcium chloride

b)

hydrogen

c)

oxygen

d)

carbon dioxide

182.

The chemical industry makes hundreds of thousands of tonnes different salts. Many methods for making salt starts with acids. Salts made from carbonic acid are called .....

a)

chlorides

b)

sulfates

c)

nitrates

d)

carbonates

183.

You can neutralize acid by adding a base that is just as strong?

a)

True

b)

False

184.

When you neutralize acid with a base you create

a)

a Salt and water

b)

You can not neutralize acid with a base

c)

You create carbon dioxide

d)

A moderate sized explosion

185.

A substance with a ph of lower than 7 is a

a)

Acid

b)

True OG

c)

Base

d)

Salt

186.

To protect tooth decay we are advised to brush our teeth regurlarly.The toothpaste is

a)

acidic

b)

neutral

c)

basic

d)

corrosive

187.

When found in food, acids often taste ________.

a)

Sour

b)

Bitter

c)

Salty

d)

Slippery

188.

When found in food, bases often taste _______.

a)

Sour

b)

Bitter

c)

Salty

d)

Soggy

189.

Many cleaning solutions are bases. Which of the following is a common property among basic solutions?

a)

slippery feel

b)

white color

c)

salty taste

d)

sour taste

190.

The products of a neutralization reaction are usually...

a)

salt and water

b)

an acid and a base

c)

a neutral solution

d)

carbon dioxide and oxygen

191.

what gas is produce after reaction between metal carbonates and acids

a)

hydrogen

b)

oxygen

c)

carbon dioxide

192.

which one is not produced after the reaction between metal carbonates and acid

a)

hydrogen

b)

water

c)

carbon dioxide

193.

which in the following is the right equation for reaction between metal carbonates and acid?

a)

Metal carbonate + hydrochloric acid → metal chloride + water + hydrogen

b)

Metal carbonate + hydrochloric acid → metal chloride + carbon dioxide

c)

Metal carbonate + hydrochloric acid → metal chloride + water + carbon dioxide

194.

What is the gas produced in the reaction of an acid with a base?

a)

Hydrogen

b)

none

c)

Carbon dioxide

195.

When acid reacts with a base, the product of the reaction is

a)

salt + H2

b)

salt + H2O

c)

salt + CO2 + H2O

196.

Which in the following is the right equation for sulfuric acid + Sodium hydroxide

a)

SO2 + NaOH --> Na2SO4 + H2O

b)

H2SO4 + NaOH --> Na2SO4 + H2O

c)

H2SO4 + NaOH --> Na2SO4 + H2

197.

Which in the following is sulfuric acid?

a)

HNO3

b)

H2SO4

c)

NH4OH

d)

HCl

198.

The metal reacts with acid will produce

a)

hydrogen gas

b)

oxygen gas

c)

water

199.

Alkali is a base that ........ in water

a)

dissolve

b)

react

c)

solidify

200.

Base and acid can cancel each other when they react. the reaction of acid and base is called ...... reaction

a)

displacement

b)

neutralisation

c)

oxidation

Acid Base Salt

Total questions: 200

Worksheet time: 3hrs 39mins

Similar Resources on Wayground