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msm quiz 1

Total questions: 180

Worksheet time: 2hrs 51mins

Name
Class
Date
1.

Which animal can breathe through their skin?

a)
b)
c)
d)
2.

Which is NOT a respiratory structure found in animals?

a)

Lungs

b)

Gills

c)

Skin

d)

Fur

3.

How do fishes obtain oxygen?

a)

Their gills absorb it from the water.

b)

They take it in when they breathe the air.

c)

Their eyes absorb it from the water.

d)

Axolotls do not need oxygen.

4.

Earthworms breathe through their _____.

a)

gills

b)

skin

c)

spiracles

d)

lungs

5.

What do fish absorb through their gills?

a)

oxygen

b)

carbon dioxide

c)

oxygen dissolved in water

d)

carbon dioxide dissolved in water

6.

Diagram shows a model of human respiratory system. K represents....

a)

lung

b)

rib cage

c)

diaphragm

d)

thoracic cavity

7.

Epiglottis is the structure that opens or closes the trachea.

a)

TRUE

b)

FALSE

8.

Exchange of gases in the body cells occurs in the bronchioles.

a)

TRUE

b)

FALSE

9.

What is X?

a)

Trachea

b)

Bronchus

c)

Bronchiole

d)

Epiglottis

10.

Which is the correct air passage in the breathing mechanism?

a)

Nostril, nasal cavity, pharynx, larynx, trachea, bronchus, bronchiole, alveolus

b)

Nostril, nasal cavity, larynx, pharynx, trachea, bronchus, bronchiole, alveolus

c)

Nostril, nasal cavity, pharynx, larynx, trachea, bronchiole, bronchus, alveolus

d)

Nostril, nasal cavity, trachea, larynx, pharynx, bronchus, bronchiole, alveolus

11.

Name structure Y.

a)

Trachea

b)

Bronchus

c)

Bronchiole

d)

Alveolus

12.

Which of the structures of human respiratory system NOT involve in the air passage in the breathing mechanism?

a)

Trachea

b)

Intercostal muscle

c)

Rib

d)

Larynx

13.

The Human respiratory system exists in :

a)

abdominal cavity

b)

thoracic cavity

c)

pleural cavity

14.

the exchange of gases ocuurs in --------------

a)

nose

b)

mouth

c)

alveoli

15.

When you breathe, your lungs take in ___ and release ___.

a)

oxygen/carbon dioxide

b)

carbon dioxide/waste

c)

waste/air

16.
Clusters of tiny air sacs that allow the exchange of oxygen and carbon dioxide
a)
Pharynx
b)
Diaphragm
c)
Alveoli
d)
Lungs
17.
Muscular structure that helps to expand and contract the lungs, forcing air in and out
a)
Pharynx
b)
Nasal cavity
c)
Alveoli
d)
Diaphragm
18.
What is the function of the respiratory system
a)
Take in O2 only
b)
Remove CO2 only
c)
Take in O2 ad remove CO2
d)
Make sugar
19.

Raw materials used in the autotrophic mode of nutrition is:

a)

Glucose, Starch, Fructose

b)

Protein, Fats

c)

Carbon dioxide, water

d)

Hydrogen, Oxygen

20.

Photosynthesis is:

a)

Trapping energy of sunlight to form glucose.

b)

Synthesis of photosensitive compounds.

c)

Oxidation of glucose

d)

Oxidation of carbon dioxide

21.

The green pigment used in photosynthesis is

a)

Phytochrome

b)

Chlorophyll

c)

Hemoglobin

d)

None

22.

Chlorophyll is mainly located in which part of the plant

a)

Green leaf

b)

Bark

c)

Stem

d)

Root

23.

Chlorophyll has a porphyrin ring with _ _ _ _ _ at the centre.

a)

Iron (Fe)

b)

Chromium (Cr)

c)

Magnesium (Mg)

d)

Carbon (C)

24.

Chlorophyll pigment is located in which organelle of a cell?

a)

Mitochondria

b)

Vacuole

c)

Plastid

d)

Chloroplast

25.

Apart from the plant which microorganism also do photosynthesis:

a)

Algae and cyanobacteria

b)

Fungi

c)

Paramecium

d)

Amoeba

26.

Heterotrophic nutrition is

a)

The utilization of energy obtained by the plants.

b)

Breakdown of Glucose into energy

c)

Oxidation of Glucose

d)

All

27.

Digestion of food in amoeba occurs in

a)

Nucleus

b)

Cytoplasm

c)

Food vacuole

d)

None

28.

Which of the following statements about the autotrophs is incorrect?

a)

They synthesise carbohydrates from carbon dioxide and water in the presence of sunlight and chlorophyll

b)

They store carbohydrates in the form of starch

c)

They convert carbon dioxide and water into carbohydrates in the absence of sunlight

d)

They constitute the first trophic level in food chains

29.

Select the correct statement

a)

Heterotrophs do not synthesise their own food

b)

Heterotrophs utilise solar energy for photosynthesis

c)

Heterotrophs synthesise their own food

d)

Heterotrophs are capable of converting carbon dioxide and water into carbohydrates

30.

Which Of The Following Statement Is Or Are Incorrect?

a)

All the living organisms need energy to perform various life processes.

b)

Energy is not required by an organism during sleep.

c)

Food is a kind of will which provides energy to all living organisms.

d)

Our body gets longest size in in early morning in the bed.

31.

Which Part Of Alimentary Canal Receives Bile From The Liver?

a)

Stomach

b)

Oesophagus

c)

Large intestine

d)

Small intestine

32.

When Air Is Blown From Mouth Into A Test-Tube Containing Lime Water, The Lime Water Turned Milky Due To The Presence Of

a)

Carbon dioxide

b)

Oxygen

c)

Nitrogen

d)

Water vapour

33.

Choose The Function Of The Pancreatic Juice From The Following

a)

Trypsin digests proteins and lipase carbohydrates

b)

Trypsin digests emulsified fats and lipase proteins

c)

Trypsin and lipase digest fats

d)

Trypsin digests proteins and lipase emulsified fats

34.

The only artery which carries deoxygenated blood is:

a)

Pulmonary artery

b)

Renal artery

c)

Hepatic artery

d)

Coronary artery

35.

How many chambers does a frog’s heart have?

a)

2

b)

3

c)

4

36.

Oxygenated blood reaches heart by

a)

Pulmonary artery

b)

Aorta

c)

Vena cava

d)

Pulmonary vein

37.

The color of blood plasma is:

a)

Red

b)

Yellowish green

c)

Pink

d)

Pale yellow

38.

The only reptile having 4- chambered heart is

a)

Snake

b)

Crocodile

c)

Lizard

d)

Turtle

39.

Which of the following organisms have single circulation?

a)

Fishes

b)

Mammals

c)

Birds

d)

Reptiles

40.

The green pigment used in photosynthesis is

a)

A. Phytochrome

b)

B. Chlorophyll

c)

C. Hemoglobin

d)

D. None

41.

Which organelle is responsible making food (Glucose) using sunlight?

a)

Cell Membrane

b)

Nucleus

c)

Chloroplast

d)

Mitochondria

42.

How does most of the water needed by the plant get into its leaves?

a)

It enters through the stomata

b)

The roots absorb it and then it travels up the stem

c)

It's made during a chemical reaction in the leaf

d)

The flowers capture water and deliver it to the leaves

43.
Why do plants conduct photosynthesis?
a)
To make light
b)
To make mitochondria
c)
To make glucose
d)
To release carbon dioxide
44.
How does carbon dioxide get into the leaves of a plant?
a)
It's absorbed by the roots
b)
It's made in a chemical reaction in the stem
c)
It enters through the stomata
d)
It goes through the flowers
45.

Which of the following is the correct equation for PHOTOSYNTHESIS?

a)

light + carbon dioxide + water --> glucose + oxygen

b)

carbon dioxide + sugar + water --> oxygen + light

c)

oxygen + light + water --> carbon dioxide + sugar

d)

carbon dioxide + oxygen + water --> Light+ Sugar

46.
Which organisms perform Photosynthesis?
a)
Only Autotrophs
b)
Only Heterotrophs
c)
Autotrophs and Heterotrophs
47.
What is the ultimate ORIGINAL source of energy for living things
a)
Sugar
b)
Sun
c)
Moon
d)
Carbon Dioxide
48.

What is the pigment in chloroplasts that performs photosynthesis?

a)

Chlorosynthesis

b)

Chlorophyll

c)

Chloroplast

d)

Green

49.
Plants need ________ for photosynthesis
a)
oxygen
b)
soil
c)
carbon dioxide
d)
sugar
50.
What is photosynthesis?
a)
The process in which humans eat their food
b)
When a photographer takes a photo.
c)
To get your pictures from the photo lab.
d)
The process in which plants make their food.
51.
The ____________ is the most photosynthetic part of a plant.
a)
leaf
b)
flower
c)
roots
d)
stem
52.
The formula for glucose is...
a)
C12 H22 O11
b)
NaCl
c)
NaOH
d)
C6 H12 O6
53.
What are the raw materials of photosynthesis?
a)
oxygen and carbon dioxide
b)
oxygen and glucose
c)
carbon dioxide and water
d)
water and glucose
54.

Why are plants considered autotrophs

a)

They make their own food

b)

They provide food for others

55.
What do plants need for the photosynthesis process?
a)
a camera and tripod
b)
light, carbon dioxide, and water
c)
roots, flowers, and bees
d)
soil, air, and oxygen
56.

Which of the following statements is/are correct?

(i) All green plants can prepare their own food.

(ii) Most animals are autotrophs.

(iii) Carbon dioxide is not required for photosynthesis.

(iv) Oxygen is liberated during photosynthesis.

Choose the correct answer from the options below:

a)

( i) and (iv)

b)

(ii) only

c)

(ii) and (iii)

d)

(i) and (ii)

57.

The autotrophic mode of nutrition requires

a)

Carbon dioxide and water

b)

Chlorophyll

c)

Sunlight

d)

All of the above

58.

The chlorophyll in photosynthesis is used for

a)

Absorbing light

b)

Breaking down water molecule

c)

No function

d)

Reduction of CO2

59.

Main site of photosynthesis

a)

Leaf

b)

Stem

c)

Chloroplast

d)

Guard cells

60.

Numerous small openings are observed under the lower surface of a leaf through a magnifying lens are

a)

Stomata

b)

lamina

c)

Midrib

d)

Veins

61.

Which part of the plant takes in carbon dioxide from the air for photosynthesis?

a)

Root hairs

b)

Stomata

c)

Leaf veins

d)

Sepals

62.

Which of the following is not necessary for photosynthesis

a)

Chlorophyll

b)

Carbon dioxide gas

c)

Oxygen

d)

Water

63.
The lamina is broad to increase surface area for maximum absorption of light energy.
a)
True
b)
False
64.

1. Which of the following statements about the autotrophs is incorrect?

a)

(a) They synthesize carbohydrates from carbon dioxide and water in the presence of sunlight and chlorophyll

b)

(b) They store carbohydrates in the form of starch

c)

(c) They convert carbon dioxide and water into carbohydrates in the absence of sunlight

d)

(d) They constitute the first trophic level in food chains .

65.

2. In which of the following groups of organisms, food material is broken down outside the body and absorbed?

a)

a) Mushroom, green plants, Amoeba

b)

(b) Yeast, mushroom, bread mould

c)

(c) Paramecium, Amoeba, Cuscuta

d)

(d) Cuscuta, lice, tapeworm

66.

3.---------------- is the process in plants that links light energy with chemical energy.

(a)  

67.

Heterotrophic nutrition has subtypes like Holozoic,Parasitic and Saprotrophic.

a)

Yes

b)

No

68.

Do all Organisms need food?

4 lines
69.

  1. Amoeba captures its food with the help of _________

a)

tentacles

b)

claws

c)

cillia

d)

pseudopodia

70.

Digestion starts from

a)

Stomach

b)

Small intestine

c)

Oesophagus

d)

Buccal cavity

71.

Saliva contains the enzyme named:

a)

Pepsin

b)

Amylase

c)

Luciferase

72.

What is the full form of ATP?

(a)  

73.

The substance in plants and animals that act as an energy currency.

a)

DNA

b)

RNA

c)

ADP

d)

ATP

74.

Which gas is evolved when zinc is added to dilute sulphuric acid?

a)

Hydrogen

b)

Oxygen

c)

Sulphur dioxide

d)

Sulphur trioxide

75.

Which gas is evolved when sodium carbonate reacts dilute hydrochloric acid?

a)

Carbon monoxide

b)

Carbon dioxide

c)

Chlorine

d)

Sodium oxide

76.

Precipitate formed during any chemical reaction occurs in which state?

a)

Solid

b)

Liquid

c)

Gaseous

d)

Plasma

77.

The colour of ferrous sulphate is :

a)

Red

b)

Yellow

c)

Green

d)

Blue

78.

The compound 'calcium hydroxide' is known as :

a)

Lime

b)

Quicklime

c)

Slacked lime

d)

Lime water

79.

Which of the following is an exothermic reaction?

a)

Electrolysis of water

b)

Photosynthesis

c)

Burning of methane

d)

Decomposition of calcium carbonate

80.

Which of the following is an endothermic reaction?

a)

Respiration

b)

Slacking of lime

c)

Formation of carbon monoxide

d)

Formation of nitrogen monoxide

81.

What does the symbol of 'aq' represents in a chemical reaction?

a)

Aqifer

b)

Aquaria

c)

Aqueous

d)

Aquatic

82.

Which of the following does not involve a chemical reaction?

a)

Digestion

b)

Respiration

c)

Burning of candle wax

d)

Melting of candle wax

83.

The chemical equations are balance to satisfy :

a)

Law of conservation of momentum

b)

Law of conservation of mass

c)

Law of conservation of motion

d)

Law of conservation of magnetism

84.

What type of chemical reactions take place when electricity is passed through water?

a)

Displacement

b)

Combination

c)

Decomposition

d)

Double displacement

85.
a)

combination

b)

double displacement

c)

decomposition

d)

displacement

86.

a)

no reaction takes place.

b)

the colour of the solution fades away.

c)

the surface of iron nails acquires a black coating.

d)

the colour of solution changes to green.

87.

When a magnesium ribbon is burnt in air, the ash formed is

a)

black.

b)

white.

c)

yellow.

d)

pink.

88.
a)

white

b)

blue

c)

grey

d)

pink

89.

When carbon dioxide is passed through lime water,

a)

calcium hydroxide is formed and it is soluble.

b)

white precipitate of CaO is formed which turns the lime water milky.

c)
d)

white colour of lime water disappears due to the formation of CaO.

90.

In the double displacement reaction between aqueous potassium iodide and aqueous lead nitrate, a yellow precipitate of lead iodide is formed. While performing the activity if lead nitrate is not available, which of the following can be used in place of lead nitrate?

a)

Lead sulphate

b)

Lead acetate

c)

Lead carbonate

d)

Lead chloride

91.

Barium chloride, on reacting with ammonium sulphate, forms barium sulphate and ammonium chloride. Which of the following correctly represents the type of reaction involved?

(i) Displacement reaction

(ii) Precipitation reaction

(iii) Combination reaction

(iv) Double displacement reaction

a)

Only (ii)

b)

Only (iv)

c)

Both (i) and (iii)

d)

Both (ii) and (iv)

92.

Which of the given products is formed when CaO (quick lime) reacts with water?

a)

Slaked lime

b)

Carbon dioxide

c)

Calcium oxide

d)

Oxygen gas

93.

The reaction in which two compounds exchange their ions to form two new compounds is called

a)

displacement reaction.

b)

combination reaction.

c)

double displacement reaction.

d)

redox reaction.

94.

In which of the following is heat always given off?

a)

Combustion reaction

b)

Decomposition reaction

c)

Combination reaction

d)

Double displacement reaction

95.

Which of the following is termed as an endothermic reaction?

a)

Reaction in which heat is evolved

b)

Reaction in which heat is absorbed

c)

Reaction in which there is loss of oxygen

d)

Reaction in which there is gain of hydrogen

96.

Which of the following gases is produced when carbon is burnt in air?

a)
b)
c)
d)
97.

Which of the following products is formed after heating of limestone (marble)?

a)

Calcium oxide

b)

Calcium carbonate

c)

Oxygen gas

d)

All of the above

98.

Which metal is displaced when lead is put into a solution of copper chloride?

a)

Pb

b)

Cu

c)

Cl

d)

Ca

99.

What happens when sodium sulphate solution is mixed with a solution of barium chloride?

a)

Barium sulphate is formed

b)

Sodium sulphate is formed

c)

Sulphur dioxide gas is formed

d)

No reaction takes place

100.

What happens when Copper metal is dipped into a solution of zinc sulphate?

a)

Copper sulphate is formed

b)

Oxygen gas is formed

c)

Zinc metal is separated

d)

No reaction takes place.

101.
a)

Decomposition reaction

b)

Double displacement reaction

c)

Double displacement reaction

d)

Displacement reaction

102.

The amphoteric oxide among the given four is

a)
b)
c)
d)
103.
a)

(i) only

b)

(ii) only

c)

(i) and (iii)

d)

(ii) and (iv)

104.
The first part of a balanced chemical equation is shown:  H2SO4 + 2NaOH → ________.  In order for this equation to be balanced, how many hydrogen (H) atoms must be present in the products?
a)
2
b)
3
c)
4
d)
5
105.
A teacher writes the equation representing the chemical reaction between hydrochloric acid and sodium on the board.HCl + Na → NaCl + H2The teacher states that the equation has not been balanced. Which of these correctly shows the products of this reaction after the equation has been balanced?
a)
Na2Cl + H2
b)
 2NaCl + H2
c)
NaCl + 2H2
d)
 2NaCl + 2H2
106.
The following reaction is an example of a 4NH3(g) + 5O2(g) → 4NO(g) + 6H2O(g)(i) displacement reaction (ii) combination reaction (iii) redox reaction (iv) neutralisation reaction
a)
(i) and (iv)
b)
(ii) and (iii)
c)
(i) and (iii)
d)
(iii) and (iv)
107.
Which of the following statements about the given reaction are correct?3Fe(s) + 4H2O(g) → Fe3O4(s) + 4H2(g)(i) Iron metal is getting oxidised (ii) Water is getting reduced (iii) Water is acting as reducing agent (iv) Water is acting as oxidising agent
a)
(i), (ii) and (iii)
b)
(iii) and (iv)
c)
(i), (ii) and (iv)
d)
(ii) and (iv)
108.
Which among the following is(are) double displacement reaction(s)?(i) Pb + CuCl2 → PbCl2 + Cu (ii) Na2SO4 + BaCl2 → BaSO4 + 2NaCl (iii) C + O2 → CO2 (iv) CH4 + 2O2 → CO2 + 2H2O
a)
(i) and (iv)
b)
(ii) only
c)
(i) and (ii)
d)
(iii) and (iv)
109.
Electrolysis of water is a decomposition reaction. The mole ratio of hydrogen and oxygen gases liberated during electrolysis of water is
a)
(a) 1:1
b)
(b) 2:1
c)
(c) 4:1
d)
(d) 1:2
110.
Which of the following are combination reactions?(i) 2KClO3⎯Heat⎯→ 2KCl + 3O2 (ii) MgO + H2O ⎯→ Mg(OH)2 (iii) 4Al + 3O2 ⎯→ 2Al2 O3 (iv) Zn + FeSO4 → ZnSO4 + Fe
a)
(a) (i) and (iii)
b)
(b) (iii) and (iv)
c)
(c) (ii) and (iv)
d)
(d) (ii) and (iii)
111.
Which of the following reactions is balanced?
a)
2CH4 + O2 -> CO2 + H2O
b)
CH4 + 2O2 -> CO2 + H2O
c)
CH4 + 2O2 -> CO2 + 2H2O
d)
None of the chemical equations are balanced.
112.

Chemical formula of lime water is :

a)

CaO

b)

Ca(OH)2

c)

CaCO3

d)

CO2

113.

Silver article turns black when kept in open for a few days due to formation of

a)

H2S

b)

AgS

c)

AgSO4

d)

Ag2S

114.

The reaction in which two compound exchange their ions to form two new compounds is called

a)

displacement reaction

b)

combination reaction

c)

redox reaction

d)

double displacement reaction

115.

The chemical formula of lead sulphate is :

a)

Pb2SO4

b)

Pb(SO4)2

c)

PbSO4

d)

Pb2(SO4)3

116.

7.The equation

Cu + xHNO3 -> Cu(NO3)2 + yNO2 + 2H2O

The values of x and y are

a)

3 and 5

b)

8 and 6

c)

4 and 2

d)

7 and 1

117.

White silver chloride in sunlight turns to :

a)

Grey

b)

Yellow

c)

Remain white

d)

Red

118.

Heating of ferrous sulphate gives which of the following product?

a)

Ferric oxide

b)

Sulphur dioxide

c)

Sulphur trioxide

d)

All the above

119.

These are all models of the same molecule. What would this molecule look like in a chemical/molecular formula?

a)

CH

b)

C4H

c)

CH4

d)

4CH

120.
How many Hydrogen are in 4H2O?
a)
6
b)
8
c)
2
d)
4
121.
Is the following equation balanced?...
Al + O2 --> 2Al2O3
a)
Yes!
b)
No!
122.

Which of the following chemical equations follows the Law of Conservation of Mass? Hint: which is balanced?

a)

CO2 + H2O --> C6H12O6 + O2

b)

C6O + H12O --> C6H12O2

c)

CO2 + H2O --> C6H12O6 + O2

d)

CO2 +H2O --> C6H12O6 +O2

123.

For an investigation a student poured a blue solution of CuSO4 into a beaker. The student placed a shiny, silver-colored strip of zinc metal in the solution and wrote down the changes. Which change shows that a CHEMICAL REACTION took place?

a)

A dark solid (precipitate) formed on the zinc metal.

b)

The zinc metal stayed silver-colored and shiny

c)

The CuSO4 solution evaporated after the zinc metal was added.

d)

None of these

124.
Which of the following is a base?
a)
orange juice
b)
water
c)
vinegar
d)
dishwashing detergent
125.
Which of the following statements is correct?
a)
Blue litmus paper turns red when placed in a base.
b)
Red litmus paper turns blue when placed in a base.
c)
Blue litmus paper stays blue when placed in an acid.
d)
Red litmus paper stays red when placed in a base.
126.
 Which of the following is an acid?
a)
shampoo
b)
baking soda
c)
orange juice
d)
water
127.
Tastes bitter.
a)
Acids
b)
Bases
c)
Salts
d)
All
128.
Pure water has a pH of 7. Pure water _______.
a)
is a base
b)
is a neutral substance
c)
could be either an acid or a base
d)
is an acid
129.
Which is the stronger acid?
a)
pH 1
b)
pH 4
c)
pH 8
d)
pH 13
130.
What do acids do to red litmus paper?
a)
Turn it Red 
b)
Turn it Blue
c)
Turn it Yellow
d)
Turn it Green
131.
Which of the following is a positive for  an acid
a)
Blue Litmus paper staying blue
b)
Red Litmus paper staying red
c)
Phenolphthalein being purple
d)
Bromothymol blue turning blue
132.
What is the name of the following acid: HCl
a)
hydrochloric acid
b)
chloric acid
c)
perchloric acid
d)
chlorous acid
133.
What is the name of the following acid: H2SO4
a)
hydrosulfuric acid
b)
sulfuric acid
c)
sulfurous acid
d)
persulfuric acid
134.
What is the name of the following: NaOH
a)
sodium hydroxide
b)
sodium oxide hydrogen
c)
hydrosodium acid
d)
sodium hydrogen oxide
135.
Which food is the most acidic?
a)
bananas
b)
lemon juice
c)
orange juice
d)
fish
136.
products of a neutralisation reaction are always
a)
an acid and a base
b)
an acid and a salt
c)
salt and water
d)
salt and base
137.

Why is toothpaste alkaline?

a)

It can neutralise strong alkaline in

your mouth

b)

It can neutralise acid in

your mouth

c)

It can refresh your teeth

d)

Toothpaste is not alkaline.

138.

... are used to neutralise acid in the stomach.

a)

Toothpastes

b)

Bacterias

c)

Antacids

d)

More strong acids

139.
Pure water has a pH of 7. Pure water _______.
a)
is a base
b)
is a neutral substance
c)
could be either an acid or a base
d)
is an acid
140.
products of a neutralisation reaction are always
a)
an acid and a base
b)
an acid and a salt
c)
salt and water
d)
salt and base
141.

What does Acid release, when it is present in thesolution form.

a)

OH-

b)

H+

c)

NO-

d)

Cl-

142.

Bases that dissolve in water are known as

a)

Water base

b)

Alkali

c)

Metal

d)

Neutral salt

143.

what is the reactant, when the product is salt and water

a)

Acid and salt

b)

Acid and water

c)

Acid and base

d)

Base and water

144.

What is salt

a)

A liquid compound.

b)

A chemical compound.

c)

A Soluble compound

d)

None of the above

145.

Can salt be reversed back to form acid and base.

a)

YES

b)

NO

146.

Which of the following is Soapy to touch

a)

Hydrochloric acid

b)

Nitric acid

c)

Sodium Hydroxide

d)

Sulphuric acid

147.

In a reaction, we have sulphuric acid with us and a base, the product formed was salt and water, casn you identify the type of salt formed?

a)

Sulphate

b)

Chloride

c)

Nitrate

d)

None of these

148.

What is the colour of FeSO4.6H2O

a)

PINK

b)

GREEN

c)

BLUE

d)

WHITE

149.

What is the reactin of the acid and base known as?

a)

Physical reaction

b)

Neutralization reaction

c)

none of the above

d)

colour reaction

150.

What is the chemical name of the compound

a)

CuSO4.2H2O

b)

CuSO4

c)

CuSO4.5H2O

d)

CuSO4.H20

151.

How does acid tastes

a)

Sweet

b)

Bitter

c)

Salty

d)

Sour

152.

Which acid is present in orange

a)

Tartaric acid

b)

Malic acid

c)

Citric acid

d)

Acitic acid

153.

Which acid is present in your stomach

a)

Naoh

b)

Sulpher

c)

Hcl

d)

Salt

154.

How does base tastes

a)

Sour

b)

Salty

c)

Bitter

d)

Sweet

155.

If the soil is acidic what we should do to make it neutral

a)

Add salt

b)

Add acid

c)

Add base

d)

Add sugar

156.

Acid + base =

(a)  

157.

Which is a natural indicator

a)

Phenoptyalin

b)

Sulpher

c)

Litmus

d)

Naoh

158.

Which is not a natural indicator

a)

Litmus

b)

Turmeric

c)

China rose

d)

Phenoptyalin

159.

When acid is added to blue litmus paper the colour is

a)

Red

b)

Blue

c)

Green

d)

Yellow

160.

If the ph value is 5 what is the substance

a)

Acid

b)

Base

c)

Neutral

d)

Sweet

161.
Pure water has a pH of 7. Pure water _______.
a)
is a base
b)
is a neutral substance
c)
could be either an acid or a base
d)
is an acid
162.

What pH range would you get for an acid?

a)

0-6

b)

7

c)

7-14

d)

2-10

163.

Alkalis feel...

a)

Rough

b)

Granulated

c)

Soapy

d)

Smooth

164.

Which pH level indicates a strong alkali?

a)

1-3

b)

4-6

c)

8-11

d)

12-14

165.

Acid in vinegar:

a)

Hydrochloric acid

b)

Sulfuric acid

c)

Acetic acid

d)

Carbonic acid

166.
Salt water did not react with the Red or Blue litmus paper.  This must mean
a)
Salt water is a Base
b)
Salt water is an Acid
c)
Salt water is neutral
d)
Salt water is charged
167.
Which of the following is a base?
a)
orange juice
b)
water
c)
vinegar
d)
dishwashing detergent
168.

Identify the acid present in tamarind.

a)

Tannic acid

b)

Lactic acid

c)

Tartaric acid

d)

Citric acid

169.

Evidence of a chemical reactions is anything that shows -

a)

a new substance has formed

b)

a solid dissolved in a liquid

c)

interaction between 2 gases

d)

a change in the state of matter

170.

Which is NOT an indication of a chemical change?

a)

temperature change

b)

formation of a precipitate

c)

shape change

d)

production of light

171.

How does acid tastes

a)

Sweet

b)

Bitter

c)

Salty

d)

Sour

172.

Which acid is present in orange

a)

Tartaric acid

b)

Malic acid

c)

Citric acid

d)

Acitic acid

173.

Which acid is present in your stomach

a)

Naoh

b)

Sulpher

c)

Hcl

d)

Salt

174.

How does base tastes

a)

Sour

b)

Salty

c)

Bitter

d)

Sweet

175.

If the soil is acidic what we should do to make it neutral

a)

Add salt

b)

Add acid

c)

Add base

d)

Add sugar

176.

Acid + base =

(a)  

177.

Which is a natural indicator

a)

Phenoptyalin

b)

Sulpher

c)

Litmus

d)

Naoh

178.

Which is not a natural indicator

a)

Litmus

b)

Turmeric

c)

China rose

d)

Phenoptyalin

179.

When acid is added to blue litmus paper the colour is

a)

Red

b)

Blue

c)

Green

d)

Yellow

180.

If the ph value is 5 what is the substance

a)

Acid

b)

Base

c)

Neutral

d)

Sweet

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