Impure black coloured solution of acetic acid is added to activated charcoal and heated for a while. Then the colour of acetic acid changes to its purest form, impurities are absorbed by activated charcoal. Which of the following characteristics of coal absorbs the impurity?

Toughness

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

Colour

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

Porosity

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

Adsorbance

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

Open in App

Solution

The correct option is C
Porosity

Activated charcoal is porous in nature, i.e., it acts as a sponge and adsorps anything with which it comes in contact with. Hence, when an impure black colour solution of acetic acid is added to activated charcoal and heated for a while, the colour of acetic acid changes to its purest form and the impurities are absorbed by activated charcoal.

Suggest Corrections

Similar questions

Q. Assertion :Activated charcoal is used for decolourising sugar solution. Reason: Activated charcoal absorbs the impurities on its surface.

Q. 3g of activated charcoal was added to 50 mL of acetic acid solution (0.06N) in a flask. After a hour it was filtered and the strength of the filtrate was found to be 0.042N. The amount of acetic acid absorbed (per gram of charcoal) is:

3 g of activated charcoal was added to 50 ml of acetic acid solution (0.06 M) in a flask. After an hour it was filtered, and the strength of filtrate was found to be 0.042 M. The mass of acetic acid adsorbed per gram of charcoal is:

3

g of activated charcoal was added to

50

mL of acetic acid solution (

0.06

N) in a flask. After an hour it was filtered and the strength of the filtrate was found to be

0.042

N. The amount of acetic acid adsorbed(per gram of charcoal) is?

Q. One gram of charcoal absorbs 100 ml 0.5 M

C H_{3} C O O H

to form a mono layer, and thereby the molarity of

C H_{3} C O O H

reduces to 0.49. Calculate the surface area of the charcoal absorbed by each molecule of acetic acid. Surface area of charcoal =

3.01 \times 10^{2} m^{2} / g m

Join BYJU'S Learning Program