1.

(A) Diphenyl ether is prepared by Ulmann reaction as shown below : C_(6)H_(5)ONa+BrC_(6)H_(5)underset(483K)overset(Cu)(rarr)C_(6)H_(5)-O-C_(5)H_(5)+NaBr (R ) Diphenyl ether is used as perfume.

Answer»

If both (A) and (R ) are CORRECT and (R ) is correct EXPLANATION of (A ).
If both (A ) and (R ) are correct but (R ) is not correct explanation of (A ).
If (A) is correct but (R ) is incorrect
If (A) is incorrect but (R ) is correct.

Answer :B


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