Verified Solution • 2025–26 Session moderate

QNEET-2021-Ch-604: NEET 2021 Chemistry - Class 12 NEET-2021-Ch-604 Solution: Which of the following reactions is the metal displacement…

Which of the following reactions is the metal displacement reaction? Choose the right option.

Multiple Choice Options

A - **(1)** $\mathrm{2Pb(NO_3)_2 \longrightarrow 2PbO + 4NO_2 + O_2}$
B - **(2)** $\mathrm{2KClO_3 \longrightarrow 2KCl + 3O_2}$
C - **(3)** $\mathrm{Cr_2O_3 + 2Al \longrightarrow Al_2O_3 + 2Cr}$
D - **(4)** $\mathrm{Fe + 2HCl \longrightarrow FeCl_2 + H_2}$

Step-by-Step Verified Solution

_ Both reactions (a) and (b) are examples of decomposition reactions. _ Reactions (c) and (d), both are examples of displacement reactions, while reaction (c) is an example of metal displacement reaction n in which a more reactive metal displaces/replaces the less reactive metal.

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