(I)C2H4  (II)C2H2  (III)C6H6  (IV)C2H6 (V)C6H5Cl উপরের যৌগের কতগুলো আসসোমার গঠন সম্ভব?

A IV>V>III>I>II
B IV>III>V>I>II
C II>I>III>V>IV
D II>I>V>III>IV

Correct Answer: IV>III>V>I>II

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