Q21 / 90 · JEE Main 2015 (04 Apr) · Chemistry

In the reaction,

Figure

The product E is

  • A
    Figure
  • B
    Figure
  • C
    Figure
  • Correct answer
    D
    Figure

Solution

Firstly, the given compound is treated with dilute hydrochloric acid with an aqueous solution of sodium nitrite at low temperature to give benzene diazonium chloride product, this reaction is known as diazotisation reaction. Now, the obtained product is heated with anhydrous cuprous cyanide, the halogen atom is replaced by cyano group.

Figure

Hence, the correct answer is option: 'D'.

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