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Preparation of salts

Total questions: 15

Worksheet time: 9mins

Name
Class
Date
1.

Which of the following is insoluble?

a)

silver chloride

b)

zinc chloride

c)

potassium chloride

d)

ammonium chloride

2.

Which method is used to prepare silver chloride?

a)

Add excess solid reactant to acid

b)

Titration

c)

Precipitation

3.

Which method is used to prepare barium sulphate?

a)

Add excess solid reactant to acid

b)

Titration

c)

Precipitation

4.

Which method is used to prepare lead (II) chloride?

a)

Pb(NO3)2(aq) + NaCl (aq) --->

b)

PbSO4(s)+ NaCl (aq) --->

c)

PbCO3(s) + NaCl (aq) --->

5.

__________ are soluble.

a)

All carbonates

b)

All chlorides

c)

All nitrates

d)

All sulfates

6.

Which of the following is/are insoluble salt(s)?

a)

barium sulphate

b)

magnesium nitrate

c)

silver nitrate

d)

sodium carbonate

7.

Precipitation involves mixing ___________ to form an insoluble solid that separates out from the reaction mixture.

a)

acid and alkali

b)

acid and metal

c)

two acids

d)

two solutions

8.

Zinc nitrate can be prepared by reacting nitric acid with excess solid. Which of the following solids cannot be used in the preparation of calcium nitrate?

a)

Zinc

b)

zinc sulphate

c)

zinc oxide

d)

zinc carbonate

9.

Which of the following method is suitable to prepare iron(II) sulphate?

a)

FeCl2 + H2SO4 --->

b)

Fe(NO3)2 + H2SO4 --->

c)

Fe + H2SO4 --->

d)

Fe(OH)2 + H2SO4 --->

10.

Bryan wants to prepare silver chloride in the science laboratory. Which of the following reactants should he use?

a)

silver + hydrochloric acid

b)

silver hydroxide + hydrochloric acid

c)

silver nitrate + potassium chloride

d)

silver + chlorine gas

11.

Which is the most suitable method for separating the products of the reaction below:


NaCl (aq) + AgNO3 (aq) --> AgCl (s) + NaNO3 (aq)

a)

chromatography

b)

crystallisation

c)

distillation

d)

filtration

12.

Bryan wants to prepare potassium sulphate by reacting an acid with potassium hydroxide. Name the acid used in this experiment.

a)

hydrochloric acid

b)

nitric acid

c)

sulphuric acid

13.

In order to obtain a soluble salt from a solution, which of the following methods should be used

a)

filtration

b)

crystallization

c)

distillation

d)

fractional distillation

14.

In order to obtain an insoluble salt from a mixture, which of the following method shhould be used?

a)

filtration

b)

crystallization

c)

distillation

d)

evaporation

15.

Which of the following methods can be used to dry the solid?


I) using a filter paper

II) put it in a desiccator

III) Put it in an oven

a)

I & II only

b)

I & III only

c)

II & III only

d)

I, II & III