JEE Main 2015 — Surface Chemistry Question with Solution
From: JEE Main 2015 (Offline)
Question
3 g of activated charcoal was added to 50 mL of acetic acid solution (0.06N) 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:
Choose an option
Show full solutionCorrect option: D
Correct answer
D18 mg
Step-by-step explanation
Let the weight of acetic acid initially be
in of solution.
Let the
(Normality )
After an hour, the strength of acetic acid
so, let the weight of acetic acid be
So amount of acetic acid adsorbed per
Amount of acetic acid adsorbed per
in of solution.
Let the
(Normality )
After an hour, the strength of acetic acid
so, let the weight of acetic acid be
So amount of acetic acid adsorbed per
Amount of acetic acid adsorbed per
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This is a previous-year question from JEE Main 2015, covering the Surface Chemistry chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.