Salts - Preparation

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  • Q1

    Chemical formula of green vitriol is

    Marks:1
    Answer:

    FeSO4.7H2O.

    Explanation:

    Green vitriol is iron sulphate heptahydrate.

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  • Q2

    Decomposition of sodium bicarbonate using hydrochloric acid yields

    Marks:1
    Answer:

    Sodium chloride, carbon dioxide and water.

    Explanation:

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  • Q3

    One of the products formed in the neutralisation reaction is water. The other product is

    Marks:1
    Answer:

    a salt.

    Explanation:

    Neutralization reaction between an acid and a base yields salt and water.

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  • Q4

    Zinc reacts with dilute sulphuric acid to produce a salt and a gas. Identify the salt and gas produced in this reaction.

    Marks:1
    Answer:

    Zinc sulphate and hydrogen.

    Explanation:

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  • Q5

    Neutralisation method can be used to prepare

    Marks:1
    Answer:

    Na2SO4.10H2O

    Explanation:

    Sodium sulphate crystals (Na2SO4.10H2O) can be prepared by neutralisation of sodium hydroxide solution with sulphuric acid or by neutralising sodium carbonate solution with sulphuric acid.

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