+91-8076753736 support@wiredfaculty.com
logo
logo

Sponsor Area

Redox Reactions

Question
CBSEENCH11006698
Wired Faculty App

Identify the oxidant and the reductant in the following reactions:
left parenthesis straight i right parenthesis space Zn left parenthesis straight s right parenthesis space plus space 1 half straight O subscript 2 left parenthesis straight g right parenthesis space space rightwards arrow space space ZnO left parenthesis straight s right parenthesis left parenthesis ii right parenthesis space Zn left parenthesis straight s right parenthesis space plus space 2 straight H to the power of plus left parenthesis aq right parenthesis space space rightwards arrow space space Zn to the power of 2 plus end exponent left parenthesis aq right parenthesis space plus space straight H subscript 2 left parenthesis straight g right parenthesis

Solution

In reaction (i) zinc donates electrons to O to give zinc and oxide ions. Therefore, Zn acts as a reductant while oxygen acts as an oxidant.
In reaction (ii) Zn transfers its electrons to H+ and therefore, zinc acts as a reductant and H+ acts as an oxidant.

Some More Questions From Redox Reactions Chapter

What are direct redox reactions? Give one example.

What are indirect redox reactions?

Write formulas for the following compounds:
(a) Mercury (II) chloride
(b) Nickel (II) sulphate
(c) Tin (IV) oxide
(d) Thallium (I) sulphate
(e) Iron (III) sulphate
(f) Chromium (III) oxide

What are electrolytes?

What are cations and anions?

What is electrolysis?

Mention two uses of electrolysis.

Define oxidation number of an element.

Mock Test Series

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation