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Acids, Base and Salts

19. 

Ammonia can be obtained by heating an ammonium salt with

A. an acid B. a caustic alkali C. an oxidising agent D. a reducing agent

Answer : A. an acid

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20. 

An aqueous solution of copper sulphate is acidic in nature because the salt undergoes

A. dialysis B. electrolysis C. hydrolysis D. photolysis

Answer : C. hydrolysis

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21. 

water is a good solvent of ionic salts because

A. it has high boiling point B. it has high dipole moment C. it has high specific hear D. it has no colour

Answer : B. it has high dipole moment

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22. 

Which one of the following salts will show acidic character when dissolved in water?

A. Sodium chloride B. Potassium chloride C. Lithium chloride D. Ammonium chloride

Answer : D. Ammonium chloride

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23. 

The acid present in lemon is

A. Citric acid B. Tartaric acid C. Malic acid D. Lactic acid

Answer : A. Citric acid

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24. 

The acid present in vinegar is

A. CH3 COOH B. H2SO4 C. HCl D. HNO3

Answer : A. CH3 COOH

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