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MHT CET 202622 AprilMorning Shift

Exam: MHT CET
Year: 2026
Date: 22 April
Shift: Morning Shift
Subject: Chemistry
Chapter: Redox Reactions

MHT CET 2026 · 22 April · Morning Shift · Chemistry · Redox Reactions

Predict the oxidation number of of 'C' in K_2C_2O_4 and in CH_2Cl_2...

Predict the oxidation number of of 'C' in

\text{K}_2\text{C}_2\text{O}_4

and in

\text{CH}_2\text{Cl}_2

.

Options

A $+3$ and $+2$
B $+3$ and $0$
C $-3$ and $+2$
D $+3$ and $-2$

Correct answer

B. $+3$ and $0$

Step-by-step solution

Let the oxidation number of

\text{C}

in

\text{K}_2\text{C}_2\text{O}_4

be

x

.

The oxidation number of

\text{K}

is

+1

and

\text{O}

is

-2

.

2(+1) + 2x + 4(-2) = 0

2 + 2x - 8 = 0

2x = 6 \Rightarrow x = +3

Let the oxidation number of

\text{C}

in

\text{CH}_2\text{Cl}_2

be

y

.

The oxidation number of

\text{H}

is

+1

and

\text{Cl}

is

-1

.

y + 2(+1) + 2(-1) = 0

y + 2 - 2 = 0 \Rightarrow y = 0

The oxidation numbers of

\text{C}

are

+3

and

0

.

Answer:

+3

and

0

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