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NTA Abhyas JEE Main2020ChemistryIonic EquilibriumPractice

Match the column I with column II and mark the appropriate choice. Column I Column II (p) C H 3 C O O N a (i) Almost neutral, pH > 7 or < 7 (q) N H 4 C l (ii) Acidic, pH < 7 (r) N a N O 3 (iii) Alkaline, pH > 7 (s) C H 3 C O O N H 4 (iv) Neutral, pH = 7

Options

  1. A(p)-(i), (q)-(ii), (r)-(iii), (s)-(iv)
  2. B(p)-(ii), (q)-(iii), (r)-(iv), (s)-(i)
  3. C(p)-(iii), (q)-(ii), (r)-(iv), (s)-(i)
  4. D(p)-(iv), (q)-(i), (r)-(iii), (s)-(ii)

Correct answer

C. (p)-(iii), (q)-(ii), (r)-(iv), (s)-(i)

Step-by-step solution

(p) C H 3 C O O N a ⇌ C H 3 C O O - Weak acid + N a + Strong base (Basic) (q) N H 4 C l ⇌ N H 4 + Weak acid + C l - Strong acid (Acidic) (r) N a N O 3 ⇌ N a + Strong base + N O 3 - Strong acid (Neutral) (s) C H 3 C O O N H 4 ⇌ C H 3 C O O - Weak acid + N H 4 + Weak base (Almost neutral) May be slightly acidic or basic depending upon p K a and p K b values of acid and base.

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