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salt and its preparation

Total questions: 40

Worksheet time: 30mins

Name
Class
Date
1.

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.

2.

Which of the following is NOT part of the definition of salt?

a)

Ionic compound

b)

when hydrogen ion of an acid

c)

is replaced by a metal cation or ammonium ion

d)

contains hydrogen ions

3.

which of the following are salts? Choose all the possible answers

a)

magnesium chloride

b)

helium chloride

c)

hydrogen chloride

d)

aluminum chloride

4.

Which of the following preparation of salt is incorrect?

a)

acid + alkali

b)

acid + metal oxide

c)

acid + carbonate

d)

acid + acid

5.

What is it called when an acid and a base combine then form a salt and water

a)

Neutralization

b)

Acidification

c)

Chemical Reaction

d)

Ionic Reaction

6.

Acid react with metal to form

a)

salt+ carbon dioxide

b)

salt + hydrogen

c)

Salt + Water

d)

Salt + metal oxide

7.
In a reaction between an acid and a metal gas bubbles will appear. What is that gas?
a)
oxygen
b)
hydrogen
c)
helium 
d)
carbon dioxide
8.

Acid + Carbonate ----->

a)

salt + hydrogen

b)

salt + water + carbon dioxide

c)

salt + water

d)

salt + carbon dioxide

9.
In a reaction between an acid and a carbonate gas bubbles will appear. What is that gas?
a)
helium
b)
hydrogen
c)
oxygen
d)
carbon dioxide
10.

Salts that are made with hydrochloric acid are called ______________.

a)

chlorides

b)

sulfates

c)

nitrates

d)

carbonates

11.

Hydrochloric acid + Sodium hyroxide  →\rightarrow   ____________ + Water

a)

Sodium sulphate

b)

Sodium chloride

c)

Sodium nitrate

12.

Salts that are made with sulfuric acid are called ______________.

a)

chlorides

b)

sulfates

c)

nitrates

d)

carbonates

13.

calcium on reaction with sulfuric acid gives:

a)

Calcium chloride

b)

Calcium carbonate

c)

Calcium nitrate

d)

Calcium sulfate

14.

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

15.
Salts that are made with nitric acid are called ______________.
a)
chlorides
b)
sulfates
c)
nitrates
d)
carbonates
16.
Salts that are made with carbonic acid are called ______________.
a)
chlorides
b)
sulfates
c)
nitrates
d)
carbonates
17.

Calcium carbonate reacts with nitric acid to form?

a)

calcium oxide

b)

calcium nitrate

c)

calcium chloride

d)

calcium sulfate

18.
Iron + Hydrochloric acid --> ?
a)
iron sulfate + water
b)
iron + hydrogen
c)
iron chloride + hydrogen
d)
iron chloride + water
19.
Magnesium and hydrochloric acid are mixed together in a beaker, hydrogen is produced as well as magnesium chloride.
Choose correct word equation
a)
magnesium chloride + hydrogen --> magnesium + hydrochloric acid
b)
magnesium + hydrochloric acid --> magnesium chloride + hydrogen
20.

Nitric acid + __________  →\rightarrow  Sodium nitrate + Water

a)

Aluminium oxide

b)

Magnesium hydroxide

c)

Sodium hydroxide

21.

Calcium chloride is prepared from ______________ and hydrochloric acid

a)

Calcium carbonate

b)

Calcium

c)

Calcium oxide

d)

all of the above

22.

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

23.

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

24.

How can I prepare a sample of zinc sulfate?

a)

Add excess Zn metal to H2SO4

b)

Titrate H2SO4 with Zn(OH)2

c)

Add Zn(NO3)2 (aq) to Na2SO4(aq)

d)

Add excess ZnCl2 to H2SO4

25.

How can I prepare a sample of copper(II) sulfate?

a)

Add excess Cu metal to H2SO4

b)

Add Cu(NO3)2 (aq) to Na2SO4(aq)

c)

Add excess CuCO3 to H2SO4

d)

Titrate Cu(OH)2 to NaOH

26.

Which method is used to prepare copper (II) sulfate?

a)

Add excess solid reactant to acid

b)

Titration

c)

Precipitation

27.

Which method is used to prepare magnesium sulfate?

a)

Add excess solid reactant to acid

b)

Titration

c)

Precipitation

28.

Which method is used to prepare zinc chloride?

a)

Add excess solid reactant to acid

b)

Titration

c)

Precipitation

29.

Identify the method used to prepare iron(II) nitrate.

a)

precipitation

b)

titration

c)

reaction of acid with insoluble substance

30.

Why is solid calcium hydroxide added in excess to dilute nitric acid when preparing the soluble 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

31.

After adding FeO with HNO3, what is my next step to prepare Fe(NO3)2 crystals?

a)

Filtration to get the residue

b)

Filtration to get the filtrate

c)

Evaporation to dryness

d)

Crystallisation

32.

After adding Cu(OH)2 with H2SO4, what is my next step to prepare CuSO4 crystals?

a)

Filtration to get the residue

b)

Filtration to get the filtrate

c)

Evaporation to dryness

d)

Crystallisation

33.
How do you know when a reaction between a metal and an acid is complete?
a)
All the metal is dissolved
b)
There is a color change in the acid
c)
Bubbles don't form when more metal is added
d)
All the acid evaporates
34.

Once I have filtered to get the solid copper sulfate, how do I remove the water to turn the solid into crystals?

a)

Filter

b)

Evaporate

c)

Distill

35.

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

36.

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

a)

Electrolysis

b)

Titration

c)

Haber Process

d)

Precipitation method

37.

Which method is used to prepare sodium chloride?

a)

Add excess solid reactant to acid

b)

Titration

c)

Precipitation

38.

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

39.

Which method is used to prepare potassium nitrate?

a)

Add excess solid reactant to acid

b)

Titration

c)

Precipitation

40.

After titrating aqueous NaOH with dilute HCl without indicator, what is my next step to obtain a sample of NaCl ?

a)

Filtration

b)

Evaporation to dryness

c)

Repeat the titration

d)

Evaporate to saturation, then cool the solution

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