The reagent ‘R’ in the given sequence of chemical reaction is : NH2 Br Br Br NaNO , HCl 2 R 0 – 5°C — NEET Chemistry Past Papers Chemistry Question

💡 Solution & Explanation

Br NH2 Br Br NaNO + HCl 2 0–5°C Br N Cl 2 Br Br Å CH CH OH 3 2 Br Br Br R : CH3CH2OH Certain mild reducing agents like hypophosphorus acid or ethanol reduce diazonium salts to arene and themselves get oxidised to phosphorous acid and ethanal respectively. 11 CODE - M2 100. The intermediate compound ‘X’ in the following chemical reaction is : CH3 CS2 H O 3 + X +CrO Cl 2 2 C O H (1) CH(OCrOHCl ) 2 2 (2) CH(OCOCH ) 3 2 (3) CH Cl Cl (4) CH Cl H Ans. (1) Sol. CH3 + CrO Cl 2 2 CS2 X H O 3 + C–H O Toluene Benzaldehyde X = CH(OCrOHCl ) 2 2