Chemistry·MCQ Practice

Redox Reactions — MCQ Practice

NEET UG

Version 1Updated 24 Mar 2026

Explore This Topic

Definition Deep Explanation Core Principles NEET Importance Problem Strategy Practice Problems MCQ Practice Quick Revision

Interactive MCQ Practice

Test your knowledge. Click “Solve” to reveal options, select your answer, then check the result. 7 questions available.

Q1medium

What is the oxidation state of sulfur in $Na_2S_2O_3$ (sodium thiosulfate)?

Q2medium

Which of the following reactions is an example of a disproportionation reaction?

Q3hard

In the reaction $MnO_4^- + C_2O_4^{2-} + H^+ \rightarrow Mn^{2+} + CO_2 + H_2O$ , what is the stoichiometric coefficient for $C_2O_4^{2-}$ when the equation is balanced in acidic medium?

Q4easy

Which of the following statements about oxidizing and reducing agents is INCORRECT?

Q5hard

What is the oxidation state of nitrogen in $NH_4NO_3$ ?

Q6easy

When $K_2Cr_2O_7$ acts as an oxidizing agent in acidic medium, what is the change in the oxidation state of chromium?

Q7hard

Balance the following reaction in basic medium: $P_4(s) + OH^-(aq) + H_2O(l) \rightarrow PH_3(g) + H_2PO_2^-(aq)$ . What is the coefficient for $OH^-$ ?