Q.

(A) : Benzene decolourises cold alkaline potassium permanganate solution

(R) : Benzene is aromatic hydrocarbon

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a

(A) is false and (R) is true.

b

Both (A) and (R) are true and (R) is the not the correct explanation of (A).

c

(A) is true but (R) is false

d

Both (A) and (R) are true and (R) is the correct explanation of (A).

answer is D.

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Detailed Solution

  • Benzene does not decolorize the acidic/alkaline KMnO4​ due to the delocalization of Ο€-electrons.
  • Benzene is aromatic compound.
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(A) : Benzene decolourises cold alkaline potassium permanganate solution (R) : Benzene is aromatic hydrocarbon