Assertion: The diazotisation reaction must be carried in ice cold solution (0-4 ° C). Reason :At higher temperature, benzenediazonium chloride reacts with water to give phenol.

Question

Assertion: The diazotisation reaction must be carried in ice cold solution (0-4 ° C). Reason :At higher temperature, benzenediazonium chloride reacts with water to give phenol. (A) If both assertion and reason are true and reason is the correct explanation of assertion (B) If both assertion and reason are true but reason is not the correct explanation of assertion (C) If assertion is true but reason is false (D) If both assertion and reason are false

Tardigrade Admin · Accepted Answer

the conversion of 1° aromatic amine into diazonium salt is known as diazotisation. The diazonium salt is only stable in cold, 0.5° e or 273-278 K temperature. and donot react with water C 6 H 5 NH 2+ NaNO 2+2 HCl xrightarrow0-5° C underset text(diazonium salt)C 6 H 5 N 2+ Cl- + NaCl +2H 2 O At higher temperature this salt reacts with water also. <img class="img-fluid question-image" alt="image" src="https://cdn.tardigrade.in/img/question/chemistry/c6c5a8c67af0cf25ca266efbc392fef5-.png" />

Q. Assertion : The diazotisation reaction must be carried in ice cold solution (0−4∘C). Reason :At higher temperature, benzenediazonium chloride reacts with water to give phenol.

If both assertion and reason are true and reason is the correct explanation of assertion

If both assertion and reason are true but reason is not the correct explanation of assertion

If assertion is true but reason is false

If both assertion and reason are false

Q. Assertion : The diazotisation reaction must be carried in ice cold solution $(0 - 4^{\circ} C)$ .
Reason :At higher temperature, benzenediazonium chloride reacts with water to give phenol.