JEE Main 2021 Chemistry question

Match List – I with List II. List-I (Colloid Preparation Method): (a) Hydrolysis (b) Reduction (c) Oxidation (d) Double Decomposition List-II (Chemical Reaction): (i) 2AuCl_3+3HCHO+3H_2O\to2Au(sol)+3HCOOH+6HCl (ii) (iii) (iv) FeCl_3+3H_2O\to Fe(OH)_3(sol)+3HCl Choose the most appropriate answer from the options given below.

• (A)(a)-(iv), (b)-(i), (c)-(ii), (d)-(iii)
• (B)(a)-(iv), (b)-(i), (c)-(iii), (d)-(ii)Correct
• (C)(a)-(iv), (b)-(ii), (c)-(iii), (d)-(i)
• (D)(a)-(i), (b)-(ii), (c)-(iv), (d)-(iii)