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There is a way to reduce benzene derivatives to the corresponding 4- cyclohexdiene known as Birch reduction . It involves treatment of aromatic substrate with two mole of active metal as Li or Na in liquid ammonia/alchol mixture. Mechanism : Find out correct product of the given reaction :

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For a typical nucleophilic aromatic subsitution reaction to take place. (1) Nucleophilic atom should be of oxygen, nitrogen or sulphur. (2) Leaving group should be halide . (3) There should be strong electron withdarwing at ortho and para position to leaving group. Find out correct product of following reaction :