Chemistry
Complete the following by choosing the correct answer from the bracket.
(a) On moving down the group electron affinity …………… (increases/decreases).
(b) The functional group present in acetic acid is …………… (-COOH/-OH/-CHO)
(c) …………… (Concentrated sulphuric acid/Dilute sulphuric acid) is a weak acid and a good electrolyte.
(d) Compounds which contains one —COOH group are known as …………… (monocarboxylic acid/dicarboxylic acid).
(e) Quicklime is not used to dry HCl gas because CaO is …………… (alkaline/acidic) in nature.
Periodic Table
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Answer
(a) On moving down the group electron affinity decreases.
(b) The functional group present in acetic acid is —COOH.
(c) Dilute sulphuric acid is a weak acid and a good electrolyte.
(d) Compounds which contains one —COOH group are known as monocarboxylic acid.
(e) Quicklime is not used to dry HCl gas because CaO is alkaline in nature.
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