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Given the incomplete equation representing an organic addition reaction:
X(g) + Cl2(g)==> XCl2(g)
Which compound could be represented by X?
(1) CH (3) C3H8
(2) C2H4 (4) C4H10



Answer :

Only C2H4 will react to give this product since it is the only reactant that contains a carbon-carbon double bond.

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