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Chemistry-Balancing Redox Reactions

NEET Chemistry Balancing Redox Reactions MCQ Question

Type: MCQ-numerical-Medium-Class 11

Balance the following redox reaction using the method of half-reactions: H2S(g) + O2(g) → S(s) + H2O(l). What are the stoichiometric coefficients of H2S and O2 when the reaction is balanced?

A

2 and 1

B

4 and 1

C

1 and 2

D

1 and 1

Correct Answer

Option A

Detailed Explanation

According to the NCERT context, the balanced reaction is 2 H2S(g) + O2(g) → 2 S(s) + 2 H2O(l). This gives stoichiometric coefficients of 2 for H2S and 1 for O2.

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