CBSE Class 10 Science 2020 · Paper 31/4/2 · Question 13

Chemical Reactions and Equations 1 mark Medium

For question numbers 13 and 14, two statements are given — one labelled as Assertion (A) and the other labelled as Reason (R). Select the correct answer to these questions from the codes (a), (b), (c) and (d) as given below :

Assertion (A): The reaction $MnO_{2} + 4 HCl \to MnCl_{2} + 2 H_{2} O + Cl_{2}$ is an example of a redox reaction.

Reason (R): In this reaction, $HCl$ is reduced to $Cl_{2}$ whereas $MnO_{2}$ is oxidised to $MnCl_{2}$ .

(a)Both (A) and (R) are true and (R) is the correct explanation of the assertion (A).
(b)Both (A) and (R) are true, but (R) is not the correct explanation of the assertion (A).
(c)(A) is true, but (R) is false.
(d)(A) is false, but (R) is true.

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CBSE Class 10 Science 2020 · Paper 31/4/2, Question 13 — all 30 questions with answers →

CBSE Class 10 Science 2020 · Paper 31/4/2 · Question 13

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