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Acid reactions, oxides, testing for gases and ions

Total questions: 59

Worksheet time: 38mins

Name
Class
Date
1.

Metal oxide + acid -->

a)

salt + water

b)

salt + oxygen

c)

salt + hydrogen

d)

salt + water + carbon dioxide

2.

metal + acid -->

a)

salt + hydrogen

b)

salt + water

c)

salt + carbon dioxide

3.

acid + base -->

a)

salt + water

b)

salt + oxygen

c)

salt + carbon dioxide

4.

When an acid and a base react, a ______________ reaction takes place.

a)

Displacement

b)

Oxidation

c)

Neutralisation

d)

Transamination

5.

H2SO4 + CuO -->

a)

CuSO4 + O2

b)

CuSO4 + H2O

c)

CuSO4 + CO

6.

What is a base?

a)

A substance that neutralizes an acid

b)

An insoluble alkali

c)

A miscible alkali

d)

An immiscible alkali

7.

Acids are substances which produce________ when you add them to water.

a)

H

b)

OH

c)

H+

d)

OH-

8.

H2SO4 is the Formula for __________________ acid

a)
sulphuric
b)

sulphurous

c)

hydrogen sulphide

d)

phosphoric

e)
nitric
9.

HNO3 is the formula for ____________ acid

a)

nitrous

b)

nitric

c)

hydrogen nitrate

d)

phosphoric

e)

sulphuric

10.
An _________________ is a soluble base which dissolves in water.
a)
alkali
b)
dilute
c)
carbon
d)
displacement
e)
sulphuric
11.
Base + ____________ -> salt + water
a)
acid
b)

alkali

c)

metal oxide

d)
HCl
12.

Which of the following statements is true concerning acids and bases?

a)

acids and bases don't react with each other

b)

acids mixed with bases neutralize each other

c)

acids mixed with bases make stronger bases

d)

acids mixed with bases make stronger acids

13.

Metal hydroxide + acid -->

a)

salt + water

b)

salt + oxygen

c)

salt + hydrogen

d)

salt + water + carbon dioxide

14.

Metal carbonate + acid -->

a)

salt + water

b)

salt + oxygen

c)

salt + hydrogen

d)

salt + water + carbon dioxide

15.
A neutralisation reaction is a reaction between 
a)

Alkali and a Base 

b)
Acid and water 
c)
Base and water 
d)

H+ and OH- ions 

16.
An acid reacts with metal to produce 
a)
Carbon dioxide 
b)
Hydrogen gas
c)
Hydrogen gas and water 
d)
Salt and hydrogen gas 
17.
A neutralisation reaction produces 
a)
An acid 
b)
A neutral substance 
c)
Only water 
d)
Salt and water 
18.
An acid reacts with a metal carbonate to produce 
a)
Salt, water and hydrogen gas
b)
Salt, water and carbon dioxide
c)
Limewater
d)
Salt and water 
19.
Complete the following reaction:
Sulphuric acid + sodium carbonate
--> 
a)
Carbon dioxide + water 
b)
calcium carbonate + water + carbon dioxide 
c)
Sodium sulphate + water + carbon dioxide 
d)
Sodium chloride + water + carbon dioxide 
20.
Complete the following reaction:
Hydrochloric acid + magnesium hydroxide --> 
a)
Magnesium chloride + water 
b)
Magnesium + water
c)
Magnesium chloride + hydrogen gas 
d)
Magnesium chloride + water + carbon dioxide 
21.

This ion produces a crimson red flame

a)

Na+

b)

Li+

c)

Ca2+

d)

K+

22.

This ion produces a lilac flame

a)

Na+

b)

Ca2+

c)

K+

d)

Ba2+

23.

This ion produces a blue-green flame

(a)  

24.

This ion produces a yellow flame

(a)  

25.

This ion produces a red flame

a)

Ca2+

b)

Na+

c)

Ba2+

d)

Cu2+

26.

This ion produces an apple-green flame

a)

Cu2+

b)

K+

c)

Ca2+

d)

Ba2+

27.

This gas turns limewater (calcium hydroxide) cloudy/milky

a)

Sulphur dioxide

b)

Hydrogen

c)

Carbon dioxide

d)

Oxygen

28.

This halide produces a white precipitate when silver nitrate is added

a)

chloride

b)

bromide

c)

iodide

29.

This halide produces a cream precipitate when silver nitrate is added

a)

chloride

b)

bromide

c)

iodide

30.

This halide produces a yellow precipitate when silver nitrate is added

a)

chloride

b)

bromide

c)

iodide

31.

After acidifying with nitric acid a few drops of barium nitrate solution is added...

a)

A white precipitate is produced - barium sulfite

b)

A white precipitate is produced - barium sulfate

c)

A white precipitate is produced - barium carbonate

d)

A white precipitate is produced - barium hydroxide

32.

When dilute acid is added to a sulfite solution, and the mixture is warmed gently, a gas is produced which

a)

Turns potassium manganate (VI) solution from colorless to purple

b)

Turns potassium manganate (VI) solution from purple to colorless

c)

Turns potassium manganate (VII) solution from colorless to purple

d)

Turns potassium manganate (VII) solution from purple to colorless

33.

To test for this anion sodium hydroxide and aluminium foil is added. The solution is warmed over a bunsen flame. This test is for the _____ ion, _____ gas is produced, which turns ___ litmus paper ___.

a)

Nitrate, ammonia, blue, red

b)

Nitrate, ammonium, blue, red

c)

Nitrate, ammonia, red, blue

d)

Nitrate, ammonium, red, blue

34.

This gas bleaches damp blue litmus paper

a)

carbon dioxide

b)

sulphur dioxide

c)

chlorine

d)

hydrogen

35.

Which positive test result is shown?

a)

Squeaky pop - oxygen gas

b)

Squeaky pop - hydrogen gas

c)

Squeaky pop - chlorine gas

36.

The positive test results for oxygen gas is...

(a)  

37.

This cation can be identified by warming a solution containing the ions with sodium hydroxide solution.

a)

Ammonia

b)

Sodium

c)

Potassium

d)

Ammonium

38.

These cations form a white precipitate when a few drops of sodium hydroxide or ammonia solution is added

a)

Aluminium

b)

Calcium

c)

Zinc

d)

Chromium

39.

When excess sodium hydroxide solution is this white precipitate it dissolves

a)

Calcium hydroxide

b)

Aluminium hydroxide

c)

Zinc hydroxide

d)

Chromium hydroxide

40.

This cation forms a blue precipitate that dissolves in excess ammonia

a)

Ca2+

b)

Fe2+

c)

Fe3+

d)

Cu2+

41.

This cation forms a green precipitate which dissolves in excess sodium hydroxide

(a)  

42.

This ion forms a brown precipitate that does not dissolve in excess sodium hydroxide or ammonia

(a)  

43.

What type of oxide is:

Copper (II) Oxide

a)

Amphoteric Oxide

b)

Basic Oxide

c)

Neutral Oxide

d)

Acidic Oxide

44.

What type of oxide is:

Carbon monoxide

a)

Amphoteric Oxide

b)

Basic Oxide

c)

Neutral Oxide

d)

Acidic Oxide

45.

What type of oxide is:

Carbon Dioxide

a)

Amphoteric Oxide

b)

Basic Oxide

c)

Neutral Oxide

d)

Acidic Oxide

46.

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

47.
How are metal oxides formed?
a)
When metals react with oxide.
b)
When metals react with water.
c)
When metals react with air.
d)
When metals react with oxygen.
48.

Which element must all oxides contain at least one atom of?

a)

copper

b)

oxygen

c)

carbon

d)

helium

49.

ZnO is an oxide that can react with acids and bases, as shown in the following equations:

ZnO + HSO --> ZnSO + H2O

ZnO +2NaOH -->Na2ZnO2 +H2O


What name is given to an oxide that reacts with both acids and bases?

a)

neutral

b)

acidic

c)

precipitate

d)

amphoteric

e)

displacement

50.

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

51.

Which of the following oxides is most likely to be an acidic oxide?

a)

CuO

b)

Na2O

c)

MgO

d)

CO2

52.

Which of the following oxides is most likely to be an basic oxide?

a)

Al2O3

b)

H2O

c)

MgO

d)

CO2

53.

Select the statements that are true of basic oxides.

a)

They are oxides of metals.

b)

They dissolve in water to form acids.

c)

They react with acids to form salt and water.

d)

They react with bases to form salts and water.

54.

Select the amphoteric oxides.

a)

aluminium oxide

b)

carbon dioxide

c)

lead(II) oxide

d)

potassium oxide

e)

zinc oxide

55.

Sodium + oxygen ->

a)

sodium oxygen

b)

sodium hydroxide

c)

sodium oxide

d)

oxygen sodide

56.

Metal oxides are basic because .....

a)

they form alkaline solutions

b)

they form acidic solutions

c)

they are simple

d)

they are dull

57.

What type of oxide is:

Water

a)

Amphoteric Oxide

b)

Basic Oxide

c)

Neutral Oxide

d)

Acidic Oxide

58.

What type of oxide is:

Potassium oxide

a)

Amphoteric Oxide

b)

Basic Oxide

c)

Neutral Oxide

d)

Acidic Oxide

59.

What type of oxide is:

Nitrogen Dioxide

a)

Amphoteric Oxide

b)

Basic Oxide

c)

Neutral Oxide

d)

Acidic Oxide

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