Question

Match List-I with List-II and choose the correct answer from the options given below. 

• A. a-ii, b-i, c-iv, d-iii
• B. a-iii, b-iv, c-i, d-ii
• C. a-iii, b-ii, c-i, d-iv
• D. a-iv, b-iii, c-i, d-ii

Hint:

Disproportionation reactions involve a species undergoing both oxidation and reduction. Keep an eye out for these when identifying reaction types.

Answer 1

The Correct Option is B

- (a) Combination reaction: \( CH_4 + 2O_2 \rightarrow CO_2 + 2H_2O \) is a combination reaction as two reactants combine to form one product. 
- (b) Decomposition reaction: \( 2H_2O \rightarrow 2H_2 + O_2 \) is a decomposition reaction, where one reactant breaks down into two products. 
- (c) Displacement reaction: \( Cl_2 + 2Br^- \rightarrow 2Cl^- + Br_2 \) is a displacement reaction where one element displaces another from a compound. 
- (d) Disproportionation reaction: \( 2H_2O \rightarrow 2H_2 + O_2 \) is a disproportionation reaction where the same species undergoes both oxidation and reduction. 
Thus, the correct answer is 2) a-iii, b-i, c-iv, d-ii.