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Preparation of Salts I - Adding excess solid to acid

Total questions: 8

Worksheet time: 4mins

Name
Class
Date
1.

Which of the following salts is prepared by precipitation method?

a)

sodium chloride

b)

calcium nitrate

c)

barium sulfate

d)

ammonium carbonate

2.

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)2 with an indicator, then again without

c)

Add excess solid zinc oxide to dilute sulfuric acid

d)

Mix aqueous zinc nitrate with aqueous potassium sulfate

3.

Why is solid calcium hydroxide added in excess to dilute nitric acid when preparing calcium nitrate salt?

a)

To ensure all calcium hydroxide is used up

b)

To speed up the reaction

c)

To ensure all dilute nitric acid is used up

d)

To have maximum yield of calcium nitrate

4.

Which pair of reagents can be used to prepare copper(II) sulfate salt?

a)

Copper metal with dilute sulfuric acid

b)

Copper(II) nitrate with sodium sulfate

c)

Copper(II) chloride and dilute sulfuric acid

d)

Copper(II) carbonate with dilute sulfuric acid

5.

Which method is used to prepare silver chloride?

a)

Add excess solid reactant to acid

b)

Titration

c)

Precipitation

6.

__________ are soluble.

a)

All carbonates

b)

All chlorides

c)

All nitrates

d)

All sulfates

7.

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

8.

A student was asked to prepare a sample of magnesium sulfate, and chose a solid to add to sulfuric acid. The experiment failed.


Which solid was chosen?

a)

magnesium carbonate

b)

magnesium nitrate

c)

magnesium

d)

magnesium oxide