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chapter 2 anions of HCl

Total questions: 10

Worksheet time: 20mins

Name
Class
Date
1.

Sugar cane must be crushed to extract the juice. The juice is collected, filtered and then boiled to drive off the excess water and give white solid crystals. which of the following tools could be used to know the purity of the sugar

a)

Beaker, test tube, graduated cylinder

b)

X-ray and electron microscope

c)

Bunsen burner and digital thermometer

d)

infrared devices (determination of functional groups)

2.

Your body needs cholesterol to build healthy cells, but high levels of cholesterol can increase your risk of heart disease. With high cholesterol, you can develop fatty deposits in your blood vessels. Cortisone is a pregnant (21-carbon) steroid hormone which is important for vital processes. which of the following tools could be used to differential be tween cholesterol and cortisone.

a)

Beaker, test tube, graduated cylinder

b)

Bunsen burner and digital thermometer

c)

Electron microscope and normal light microscope

d)

Mass spectroscopy (measuring molecular weight), infrared devices (determination of functional groups)

3.

to extract iron from stainless steel sample, which of the following procedures could be conducted

a)

magnet and washing

b)

complete reduction, dissolution in acid, filtration, strong heating of the residue, neutralization with base

c)

reaction with conc. nitric acid

d)

dissolution in acid, neutralization with base, filtration, strong heating of the residue, complete reduction

4.

which of the following could be used to differentiate between calcium carbonate and calcium bicarbonate

a)

magnesium chloride

b)

dil. HCl

c)

pure water

d)

AgNO3 solution

5.

which of the following technics could be used to separate a mixture of magnesium carbonate and sodium carbonate.

a)

reaction with HCl then adding NaOH

b)

dissolution in MgSO4 then filtration and evaporation

c)

addition of water then filtration and evaporation

d)

reaction with BaCl2 then evaporation

6.

............... is used to differentiate between sulphur dioxide and carbon dioxide gases.

a)

Sodium hydroxide solution

b)

calcium carbonate solution

c)

Sodium bicarbonate solution

d)

Silver nitrate solution

7.

We can differentiate between sodium nitrate and silver nitrite by .......

a)

Sodium hydroxide solution

b)

blue litmus paper.

c)

Sodium sulphide solution

d)

Sodium chloride solution

8.

We can differentiate between the product of reaction of sodium sulphide and sodium sulphite with HCl using .......

a)

Sodium hydroxide solution

b)

blue litmus paper.

c)

acidified K2Cr2O7 solution

d)

acidified KMnO4 solution

9.

We can differentiate between sodium carbonate and sodium bicarbonate by .......

a)

magnesium chloride solution

b)

Conc HCl

c)

MgSO4 solution

d)

silver nitrate solution

10.

we can differentiate between HCl solution and H2SO4 solution using

a)

sodium carbonate solution

b)

sodium sulphite solution

c)

sodium chloride solution

d)

sodium thiosulphate solution