MyQuestionIcon

1

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

Reaction with Metals

O2 is absorbe...

Question

$O_{2}$ is absorbed by alkaline solution of pyrogallol.

A

True

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

B

False

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

C

Ambiguous

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

D

None of these

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

Open in App

Solution

The correct option is A True
Pyrogallol is a white solid. It is very sensitive towards oxygen. When an alkaline solution, it absorbs oxygen from the air, turning brown from a colourless solution.

Hence, option A is correct.

Suggest Corrections

thumbs-up

0

Similar questions

Q. Oxygen is absorbed by an alkaline solution of:

Q. 7.5 ml of a gaseous hydrocarbon was exploded with 36 ml of

O_{2}

. On cooling, the volume of gases was found to be 28.5 ml, 15 ml of which was absorbed by

K O H

and the rest was absorbed in a solution of alkaline pyrogallol. The formula of hydrocarbon is:

Q. The gases respectively absorbed by alkaline pyragallol and oil of cinnamon is-

Q. The formula mass (in gm) of ammonia from the following data is
(i) Volume of ammonia

=

25 mL; (ii) Volume on addition of

O_{2}

after explosion

=

71.2 mL; (iii) Volume after explosion and reaction with

O_{2}

on cooling v 14.95 mL; (iv) Volume after being absorbed by alkaline pyrogallol

=

Q. A mixture of three gases

A, B

C

is passed first into acidified

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

A

is absorbed turning the solution green. The remainder of the gas is passed through excess of lime water which turns milky resulting in the absorption of

B

. The residual gas

C

is absorbed by alkaline pyrogallol solution. However the original mixture does not turn lead acetate paper black. Identify

A, B

C

:

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Chemical Reactions of Halogens

CHEMISTRY

Watch in App

explore_more_icon

Explore more

Reaction with Metals

Standard XII Chemistry

Join BYJU'S Learning Program

CrossIcon