JEE MAIN - Chemistry (2021 - 20th July Morning Shift - No. 6)
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Among the given species the Resonance stabilised carbocations are :
(C) and (D) only
(A), (B) and (D) only
(A) and (B) only
(A), (B) and (C) only
Explanation
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For resonance positive charged carbon atom ( Name it carbon 1) should be connected with the carbon atom( Name it carbon 2) using only sigma bond. Then carbon 2 should attach with another carbon with double bond. Here you can see (A) and (B) satisfies this situation but (C) and (D) don’t satisfy the situation.
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