Practice question

MCQ

Question

What is the change in oxidation number of sulfur in the reaction S + 2H₂SO₄ → 3SO₂ + 2H₂O?

Options

Choose one · Correct answer highlighted

+2 +4 Correct +6 -4

Explanation

S (0) becomes +4 in SO₂. Change = +4 - 0 = +4.

Share this question

Discussion

Comments

0 comments

Please log in to join the discussion.

No comments yet. Be the first to start the discussion.

Related blogs

Guides and insights connected to this topic

Botany 06 Sep 2026

Photosynthesis in Higher Plants Biology Notes - Experiments, Light Reaction, Calvin Cycle, C3 and C4 Pathway and Factors Affecting Photosynthesis

Study photosynthesis in higher plants, including early experiments, light reactions, the Calvin cycle, C3 and C4 pathways, and key factors.

Protein 30 May 2023

Quaternary Structure of Proteins

Quaternary structure is the final level of protein structure and pertains to proteins that consist of more than one polypeptide chain. Each...

Class IX Science 14 Sep 2026

Tissues in Action Notes - Plant and Animal Tissues, Meristematic, Epithelial, Connective and Muscular

Explore how cells form tissues in plants and animals, covering meristematic, epithelial, connective and muscular types, and why their structures differ.