CameraIcon

SearchIcon

MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Preparations and Uses of Sodium Carbonate

An inorganic ...

Question

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:

A

H g O

No worries! We‘ve got your back. Try BYJU‘S free classes today!

B

H_{2} O_{2}

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

C

K N O_{3}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

D

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

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is B $H_{2} O_{2}$
$2 H_{2} O_{2} Heat ⟶ 2 H_{2} O + O_{2} 2 K I + H_{2} O_{2} Acidic ⟶ 2 K O H + I_{2} Brown$
$H_{2} O_{2}$ reduces acidified $K M n O_{4}$ solution
$2 K M n O_{4} + 3 H_{2} S O_{4} + 5 H_{2} O_{2} \to K_{2} S O_{4} + 2 M n S O_{4} + 8 H_{2} O + 5 O_{2}$

Suggest Corrections

thumbs-up

0

Similar questions

Q. 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:

Q. A substance on treatment with

d i l . H_{2} S O_{4}

liberates a colorless gas which produces (i) turbidity with ba-ryta water and (ii) turns acidified dichromate solution green. The reaction indicates the presence of :

Q. An aqueous solution of an unknown compound (X) gives the following reactions
(i) It gives a brown precipitate with alkaline

K M n O_{4}

solution.
(ii) It forms

H C l

O_{2}

when reacted with

C l_{2}

gas.
(iii) It liberates

I_{2}

from an acidified KI solution
(iv) It gives orange yellow color with acidified titanic sulfate solution. Identify

X

Q. When a substance reacts with dil. sulphuric acid a light brown gas is evolved when a filter paper moistened with acidified starch iodide solution is brought on the month of the test, it is turned blue. The acidic radical in the salt is :

Q. An aqueous solution of a compound

X

shows the following reactions.
(i) It decolourises an acidified

K M n O_{4}

solution accompanied by the evolution of oxygen.
(ii) It liberates iodine from an acidified potassium iodine solution.
(iii) It gives a brown precipitate with alkaline

K M n O_{4}

solution with the evolution of oxygen.
(iv) It removes black stains from old oil paintings.
Identify

X

.

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Sodium Carbonate

CHEMISTRY

Watch in App

explore_more_icon

Explore more

Preparations and Uses of Sodium Carbonate

Standard XII Chemistry

Join BYJU'S Learning Program

CrossIcon