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

Tough

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Grey in colour

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Porous

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Suffocating smell

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Solution

The correct option is C Porous
Activated charcoal is porous in nature, i.e., it acts as a sponge and absorbs anything with which it comes in contact with. Hence when impure black coloured solution of acetic acid is added to activated charcoal, the impurities are absorbed by activated charcoal thus leaving the solution colourless.

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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?

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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?

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