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Reaction with Metals

An organic su...

Question

An organic substances liberates oxygen on heating and turns an acidic solution of $K I$ brown and reduces acidified $K M n O_{4}$ solution. The substance is:

H g O

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H_{2} O_{2}

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K N O_{3}

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P b (N O_{3})_{2}

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Solution

The correct option is C $H_{2} O_{2}$
${2 K M n O}_{4} + 3 H_{2} O_{2} ⟶ 2 M n O_{2} + 2 K O H + 2 H_{2} O + 3 O_{2}$
$-$ $K M n O_{4}$ is reduced to ${M n O}_{2}$
$-$ $H_{2} O_{2}$ is oxidized to $O_{2}$
$-$ $H_{2} O_{2}$ also turns acidic solution of $K I$ brown due to the formation of $I_{2}$ .

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Similar questions

An inorganic substance liberates oxygen on heating and turns an acidic solution of $K I$ brown and reduces acidified $K M n O_{4}$ solution. The substance is:

Q. A

5

ml solution of

H_{2} O_{2}

liberates

0.508

g of iodine from an acidified

K I

solution. What is the volume strength of the

H_{2} O_{2}

solution?

Q. A

5.0 c m^{3}

solution of

H_{2} O_{2}

liberates

0.508

g of

I_{2}

from an acidified

K I

solution. The strength of

H_{2} O_{2}

solution in terms of volume strength at STP is:

5.0 c m^{3}

H_{2} O_{2}

liberates

0.508 g

of iodine from an acidified

K I

solution. Calculate the strength of

H_{2} O_{2}

solution in terms of volume strength at S.T.P.

25.5

mL of

H_{2} O_{2}

solution liberates

0.508

g of

I_{2}

from an acidified KI solution. The strength of

H_{2} O_{2}

solution in terms of volume strength at STP will be.

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An organic substances liberates oxygen on heating and turns an acidic solution of KI brown and reduces acidified KMnO4 solution. The substance is:

The correct option is C H2O22KMnO4+3H2O2⟶2MnO2+2KOH+2H2O+3O2− KMnO4 is reduced to MnO2− H2O2 is oxidized to O2− H2O2 also turns acidic solution of KI brown due to the formation of I2.

An organic substances liberates oxygen on heating and turns an acidic solution of $K I$ brown and reduces acidified $K M n O_{4}$ solution. The substance is: