discuss-forum?question_id=212627-BD-Merit-Freelancing,-BCS,-Bank,-Primary,-Admission,-NTRCA

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1.

A. $C_{2} H_{4}$
B. $C_{2} H_{4}$
C. $C_{2} H_{4}$
D. $C_{2} H_{4}$

Answer: Option C

Explanation:

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