Question

Which of the molecules shown below are unsaturated?
(1) CH3CH2CH2CH(CH3)2
(2) CH3CH=CHCH(CH3)2
(3) HCCCH2CH(CH3)2
A) All are unsaturated.
B) Only (2) and (3) are unsaturated.
C) Only (2) is unsaturated.
D) Only (3) is unsaturated.

Answer

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