Question

A) HOCl(aq) is the molecule that kills bacteria when chlorine is added to water. The wing reaction produces this molecule.

Cl2(g) + H2O(l) + HOCI(aq) + H+ (aq) +CI (aq)
Which statement about this reaction is correct?
A Chlorine is both oxidised and reduced.
B Chlorine is oxidised but not reduced.
C Hydrogen is both oxidised and reduced.
D Hydrogen is oxidised but not reduced.

B) Find the oxidation state of,
i) Each Cr in K:Cr2O
ii) Mn in MnO
iii) C in C:04

C) 20.0cm of an acidified solution containing Fe ions was titrated against KMnO4 solution. 18.0cm of 0.450M KMnO4 was needed. Calculate the concentration of Fe ions in the acidified solution.​

Answer 1

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Class 11

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>>Redox Reactions

>>Classical Idea of Redox Reactions

>>HOCl(aq) is the molecule that kills bact

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HOCl(aq) is the molecule that kills bacteria wen chlorine is added to water.

The following reaction produces this molecule

Cl

2

(g)+H

2

O(l)⇌HOCl(aq)+H

+

(aq)+Cl

−

(aq)

Which statement about this reaction is correct?

Hard

Updated on : 2022-09-05

Solution

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Correct option is A)

Oxidation and reduction are two types of chemical reactions that often work together. Oxidation and reduction reactions involve an exchange of electrons between reactants.

Reduction and oxidation occur simultaneously in a type of chemical reaction called a reduction-oxidation or redox reaction.

Oxidation Involves Loss of electrons

Reduction Involves Gain of electrons.

As we can see the above case with the chlorine .

hence chlorine is both oxidised and reduced

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