NEETChemistryIonic Equilibrium
Match the following : pH calculation for following mixtures can be done on the basis of concept of ( array |l|l|l|l| & List-I & & List-II (a) & Buffer solution & (i) & 50 mL of 0.1 M HCl mixed with 10 mL of 0.2 M HCN. (b) & Salt hydrolysis & (ii) & 200 mL of 0.02 M CH ₃ COONa mixed with 100 ~mL 0.02 M CH ₃ COOH (c) & Strong acid & (iii) & 100 mL of 0.5 M~HCl mixed with 500 mL of 0.1 M NH ₄ OH (d) & Weak acid & (iv) &
Options
- A(a)-(iii), (b)-(ii), (c)-(iv), (d)-(i)
- B(a)-(ii), (b)-(iii), (c)-(iv), (d)-(i)
- C(a)-(iii), (b)-(ii), (c)-(i), (d)-(iv)
- D(a)-(ii), (b)-(iii), (c)-(i), (d)-(iv)
Correct answer
D. (a)-(ii), (b)-(iii), (c)-(i), (d)-(iv)
Step-by-step solution
Here's the matched list: (a) Buffer solution - (ii) 200 mL of 0.02 M CH 3 COONa mixed with 100 mL 0.02 M CH 3 COOH (b) Salt hydrolysis - (iii) 100 mL of 0.5 M HCl mixed with 500 mL of 0.1 M NH 4 OH (c) Strong acid - (i) 50 mL of 0.1 M HCl mixed with 10 mL of 0.2 M HCN (d) Weak acid - (iv) 100 mL of 0.4 M NaCN mixed with 100 mL of 0.4 M HCl So, the correct answer is: (4) (a)-(ii), (b)-(iii), (c)-(i), (d)-(iv) Explanation: - (a) Buffer solution: CH 3 COONa (acetate ion) and CH 3 COOH (acetic acid) form a buffer solut