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Stoichiometric Calculations

H2C2O4 and ...

Question

$H_{2} C_{2} O_{4}$ and $N a H C_{2} O_{4}$ behave as acids as well as reducing agents. Which are correct statements?

Equivalent weight of

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

and

N a H C_{2} O_{4}

are equal to their molecular weights when behaving as reducing agents.

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100

mL of

1 M

solution of each is neutralised by equal volumes of

1 M

C a (O H)_{2}

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100

mL of

1 N

solution of each is neutralised by equal volumes of

1 N

C a (O H)_{2}

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100

mL of

1 M

solution of each is oxidised by equal volumes of

1 M

K M n O_{4}

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Solution

The correct options are
C $100$ mL of $1 N$ solution of each is neutralised by equal volumes of $1 N$ $C a (O H)_{2}$ .
D $100$ mL of $1 M$ solution of each is oxidised by equal volumes of $1 M$ $K M n O_{4}$ .
(A) Equivalent weight of $H_{2} C_{2} O_{4}$ and $N a H C_{2} O_{4}$ are equal to one half of their molecular weights, when they behave as reducing agents.
Hence, the option A is incorrect.
(B) $100$ mL of $1$ M solution of $H_{2} C_{2} O_{4}$ is neutralised by equal volumes of $1 M$ $C a (O H)_{2}$ .
$100$ mL of $1 M$ solution of $N a H C_{2} O_{4}$ is neutralised by $50$ mL of $1 M$ $C a (O H)_{2}$ .
Hence, option B is incorrect.
(C) $100$ mL of $1 N$ solution of each is neutralised by equal volumes of $1 N$ $C a (O H)_{2}$ .
This is because $100$ mL of $1 N$ solution of each corresponds to $0.1 N$ which requiers $0.1 N$ $C a (O H)_{2}$ .
Thus, the option C is correct.
(D) $100$ mL of $1 M$ solution of each is oxidized by equal volumes of $1 M$ $K M n O_{4}$ .
This is because equivalent weight of $H_{2} C_{2} O_{4}$ and $N a H C_{2} O_{4}$ are equal to one half of their molecular weights when behaving as reducing agents.
Hence, the option D is correct.

Suggest Corrections

Similar questions

10

ml of

N a H C_{2} O_{4}

solution is neutralised by

10

ml of

0.1 M N a O H

solution.

10

ml of same

N a H C_{2} O_{4}

solution is oxidised by

10

ml of

K M n O_{4}

solution in acidic medium. Hence, molarity of

K M n O_{4}

is :

Q. Equal volumes of

1 m

H C l

and

1 M

H_{2} {S O}_{4}

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x

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k J . e q u i v a l e n t

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Q. An equal volume of a reducing agent is titrated separately with

1 M

K M n O_{4}

in acidic, neutral and alkaline medium. The volumes of

K M n O_{4}

required are

20

mL in acidic,

33.3

mL in neutral and

100

mL in alkaline medium. Find out the volume of

1

K_{2} C r_{2} O_{7}

consumed if the same volume of the reducing agent is titrated in acidic medium.

Q. If equal volumes of

1 M

K M n O_{4}

and

1 M

K_{2} C r_{2} O_{7}

solutions are used to oxidise

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F e^{2 +}

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Q. If

N a H C_{2} O_{4}

behaves as a reducing agent. Its equivalent weight is:

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H2C2O4 and NaHC2O4 behave as acids as well as reducing agents. Which are correct statements?

$H_{2} C_{2} O_{4}$ and $N a H C_{2} O_{4}$ behave as acids as well as reducing agents. Which are correct statements?