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Standard XII

Chemistry

Hydrogen Peroxide

Which of the ...

Question

Which of the following will be formed when KI is treated with $H_{2} O_{2}$ in neutral medium ?

K O H

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O_{3}

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K O_{2}

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K_{2} O_{3}

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Solution

The correct option is A $K O H$
Hydrogen peroxide is a powerful oxidising agent. It acts as an oxidising agent in neutral, acidic or in alkaline medium.
$K O H$ will be formed when KI is treated with $H_{2} O_{2}$ in neutral medium.
$2 K I + H_{2} O_{2} \to 2 K O H + I_{2}$

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Similar questions

H_{2} O_{2} + 2 K I 40 % y i e l d - ---- \to I_{2} + 2 K O H

H_{2} O_{2} + 2 K M n O_{4} + 3 H_{2} S O_{4} 50 % y i e l d - ---- \to K_{2} S O_{4} + 2 M n S O_{4} + 3 O_{2} + 4 H_{2} O

150 m L

H_{2} O_{2}

sample was divided into two parts. First part was treated with

K I

and formed

K O H

required

200 m L

\frac{M}{2} H_{2} S O_{4}

for neutralization. Other part was treated with

K M n O_{4}

for neutralization yielding

6.74 L

O_{2}

1 a t m

and

273 K

. Using

%

yield indicated, find volume strength of

H_{2} O_{2}

sample used:

Q. When an excess of

A g N O_{3}

is treated with

K I

solution,

A g I

will be produced.

A g I

will be:

Q. Which of the following cannot be oxidized by

H_{2} O_{2}

Q. When an excess of

A g N O_{3}

is treated with

K I

solution,

A g I

forms a:

Q. 150 mL of a

H_{2} O_{2}

sample was divided into two parts. The first part was treated with

K I

and the formed

K O H

required 200 mL of

\frac{M}{2}

H_{2} S O_{4}

for neutralization. The other part was treated with

K M n O_{4}

, yielding 6.72 L of

O_{2}

at 1 atm and 273 K. Using the given % yields find the molarity of

H_{2} O_{2}

H_{2} O_{2} + 2 K I ⟶ I_{2} + 2 K O H (Y i e l d = 40 %)

H_{2} O_{2} + 2 K M n O_{4} + 3 H_{2} S O_{4} ⟶ K_{2} S O_{4} + 2 M n S O_{4} + 3 O_{2} + 4 H_{2} O (Y i e l d = 50 %)

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Hydrogen Peroxide

Standard XII Chemistry

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Which of the following will be formed when KI is treated with H2O2 in neutral medium ?

The correct option is A KOHHydrogen peroxide is a powerful oxidising agent. It acts as an oxidising agent in neutral, acidic or in alkaline medium. KOH will be formed when KI is treated with H2O2 in neutral medium. 2KI+H2O2→2KOH+I2

Which of the following will be formed when KI is treated with $H_{2} O_{2}$ in neutral medium ?

The correct option is A $K O H$
Hydrogen peroxide is a powerful oxidising agent. It acts as an oxidising agent in neutral, acidic or in alkaline medium.
$K O H$ will be formed when KI is treated with $H_{2} O_{2}$ in neutral medium.
$2 K I + H_{2} O_{2} \to 2 K O H + I_{2}$