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Potassium Permanganate

Why is HCl no...

Question

Why is $H C l$ not used to make the medium acidic in oxidation reactions of $K M n O_{4}$ in acidic medium?

K M n O_{4}

acts as a reducing agent in the presence of

H C l

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K M n O_{4}

is a weaker oxidising agent than

H C l

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K M n O_{4}

oxidises

H C l

into

C l_{2}

which is also an oxidising agent

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Both

H C l

and

K M n O_{4}

act as oxidising agents

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Solution

The correct option is C $K M n O_{4}$ oxidises $H C l$ into $C l_{2}$ which is also an oxidising agent
$H C l$ is not used to make the medium acidic in oxidation reactions of $K M n O_{4}$ . The reason is that if $H C l$ is used, the oxygen produced from $K M n O_{4} + H C l$ is partly utilized in oxidizing $H C l$ to $C l_{2}$ , which itself acts as an oxidizing agent and partially oxidises the reducing agent.

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Similar questions

Q. Why is

H C l

not used to make the medium acidic in oxidation reactions of

K M n O_{4}

in acidic medium?

For titrating certain volume of a reducing substance by

1 M

K M n O_{4}

, it is found that

20

mL was used in acidic medium,

33.4

mL was used in alkaline medium and

100

mL was used in neutral medium.

{M n O_{4}}^{-}

is reduced to

M n^{2 +}

in acidic Medium.

To what oxidation state is

{M n O_{4}}^{-}

reduced to in alkaline medium?

100

mL of

0.01 M

K M n O_{4}

oxidized

100

mL of

H_{2} O_{2}

in acidic medium. The volume of the same

K M n O_{4}

required in alkaline medium to oxidize

100

mL of the same

H_{2} O_{2}

will be :

(

M n O_{4}^{⊝}

changes to

M n^{2 +}

in acidic medium and to

M n O_{2}

in alkaline medium)

Q. In the reaction of

K M n O_{4}

with

H_{2} C_{2} O_{4}

20

mL of

0.2 M K M n O_{4}

is not equivalent to (in acidic medium):

Q. When

K M n O_{4}

is reduced with oxalic acid in acidic medium, the oxidation number of

M n

changes from:

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Why is HCl not used to make the medium acidic in oxidation reactions of KMnO4 in acidic medium?

Why is $H C l$ not used to make the medium acidic in oxidation reactions of $K M n O_{4}$ in acidic medium?