Question

Name the:

(a) acidic anhydride of the following acids:

(i) sulphurous acid

(ii) nitric acid

(iii) phosphoric acid

(iv) carbonic acid

(b) acids present in vinegar, grapes and lemon

(c) (i) ion that turns blue litmus red,

(ii) ion that turns red litmus blue.

Answer 1

(a) The anhydride of following acids are:

(i) Sulphurous acid: SO₂

(ii) Nitric acid: N₂O₅

(iii) Phosphoric acid: P₂O₅

(iv) Carbonic acid : CO₂

(b) Acids present in following are:

Vinegar: Acetic acid

Grapes: Tartaric acid and Malic acid

Lemon: Citric acid

(c) (i) H⁺ ion turns blue litmus red.

(ii) OH^- ion turns red litmus blue.