Equilibrium Ques 63

63. Aqueous solution of acetic acid contains

[1991]

(a) $CH_3 COO^{-}$and $H^{+}$

(b) $CH_3 COO^{-}, H_3 O^{+}$and $CH_3 COOH$

(c) $CH_3 COO^{-}, H_3 O^{+}$and $H^{+}$

(d) $CH_3 COOH, CH_3 COO^{-}$and $H^{+}$

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Answer:

Correct Answer: 63.(b)

Solution:

  1. (b) An aqueous solution of acetic acid dissociates as

$CH_3 COOH+H_2 O \rightleftharpoons CH_3 COO^{-}+H_3 O^{+}$