JEE Main Chemistry question

Not in JEE Main or NEET syllabus

Activation of charcoal:

(A)Can be achieved only with charcoal from nut shells
(B)Increases the adsorbing power of the charcoalCorrect
(C)Is accomplished by giving powdered charcoal an electrical charge
(D)Is achieved by heating the charcoal in air

Answer: (B)

Solution

"Activating" charcoal (typically by heating it in steam or an inert/reducing atmosphere, not in air, which would simply burn it) removes residual tars and opens up

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Question ID VK-138731