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Which copper reagent in a Sandmeyer reaction converts a diazonium salt into an aryl nitrile?
ACuCl
BCuBr
CCuCN
DCu2O
Answer & Solution
Correct answer: C. CuCN
Cyanation uses CuCN, while CuCl, CuBr and Cu2O give chloro, bromo and hydroxy products.
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