Question

Match the following reactions with their corresponding unbalanced equations:

• A. A – (iii); B – (ii); C – (iv); D – (i)
• B. A – (i); B – (iv); C – (ii); D – (iii)
• C. A – (i); B – (ii); C – (iii); D – (iv)
• D. A – (iii); B – (iv); C – (ii); D – (i)

Hint:

For matching reactions, identify the reaction type first (combination, decomposition, disproportionation, displacement) and then match with given equations.

Answer 1

The Correct Option is D

Step 1: Identify each reaction type by a key clue.
A: two reactants combine into one product -- combination (iii). B: single compound splits into simpler ones -- decomposition (iv). C: same element is both oxidised and reduced -- disproportionation (ii). D: one element displaces another -- displacement (i).

Step 2: Write the match.
A-iii, B-iv, C-ii, D-i.
\[ \boxed{A\text{-}iii,\ B\text{-}iv,\ C\text{-}ii,\ D\text{-}i} \]