Logo
Jeeify
MCQEasyJEE 2024Oxidation Number & Redox Reactions

JEE Chemistry 2024 Question with Solution

The reaction Zn+H2SO4→ZnSO4+H2\text{Zn} + \text{H}_2\text{SO}_4 \rightarrow \text{ZnSO}_4 + \text{H}_2 is an example of:

  • A

    Combination reaction

  • B

    Decomposition reaction

  • C

    Displacement reaction

  • D

    Redox reaction

Answer

Correct answer:D

Step-by-step solution

Standard Method

Given: The reaction is Zn+H2SO4→ZnSO4+H2\text{Zn} + \text{H}_2\text{SO}_4 \rightarrow \text{ZnSO}_4 + \text{H}_2.

Find: The type of reaction.

This reaction is classified on the basis of electron transfer. Zinc is oxidized to Zn2+\text{Zn}^{2+} and hydrogen ions are reduced to H2\text{H}_2. Since both oxidation and reduction occur together, the reaction is a redox reaction.

Therefore, the correct option is D.

Common mistakes

  • Confusing this with only a displacement reaction. Although zinc displaces hydrogen from acid, the solution classifies it by electron transfer. Use the oxidation-reduction viewpoint here.

  • Ignoring oxidation states. If oxidation and reduction are not checked, the reaction type may be misidentified. Verify that zinc loses electrons and hydrogen gains electrons.

Practice more Oxidation Number & Redox Reactions questions

Get unlimited AI-adaptive practice, mastery tracking, and an AI tutor that explains every step — free to start.

Start free trialMore on Oxidation Number & Redox Reactions

Related questions