OnlineCBT
Chemistry · PYQ NEET UG 2021
हिन्दीMatch List-I with List-II: List-I List-II i \( \text{C}_6\text{H}_6 \xrightarrow[\text{Anhyd. }\text{AlCl}_3]{\text{CO, HCl}} \text{C}_6\text{H}_5\text{CHO} \) a Hell-Volhard-Zelinsky reaction ii \( \text{R} - \text{C} - \text{CH}_3 + \text{NaOX} \longrightarrow \text{R} - \text{CH}_2 - \text{OH} + \text{R}'\text{COOH} \) b Gattermann-Koch reaction iii \( \text{R} - \text{CH}_2 - \text{OH} + \text{R}'\text{COOH} \xrightarrow{\text{Conc. H}_2\text{SO}_4} \text{Ester} \) c Haloform reaction iv \( \text{R} - \text{CH}_2\text{COOH} \xrightarrow[\text{(ii) }\text{H}_2\text{O}]{\text{(i) X}_2/\text{Red P}} \text{R} - \text{CH(X)}\text{COOH} \) d Esterification Choose the CORRECT answer from the options given below.
Match List-I with List-II:
| List-I | List-II | ||
|---|---|---|---|
| i | \( \text{C}_6\text{H}_6 \xrightarrow[\text{Anhyd. }\text{AlCl}_3]{\text{CO, HCl}} \text{C}_6\text{H}_5\text{CHO} \) | a | Hell-Volhard-Zelinsky reaction |
| ii | \( \text{R} - \text{C} - \text{CH}_3 + \text{NaOX} \longrightarrow \text{R} - \text{CH}_2 - \text{OH} + \text{R}'\text{COOH} \) | b | Gattermann-Koch reaction |
| iii | \( \text{R} - \text{CH}_2 - \text{OH} + \text{R}'\text{COOH} \xrightarrow{\text{Conc. H}_2\text{SO}_4} \text{Ester} \) | c | Haloform reaction |
| iv | \( \text{R} - \text{CH}_2\text{COOH} \xrightarrow[\text{(ii) }\text{H}_2\text{O}]{\text{(i) X}_2/\text{Red P}} \text{R} - \text{CH(X)}\text{COOH} \) | d | Esterification |
Choose the CORRECT answer from the options given below.
Correct answer · Option 3
i – b, ii – c, iii – d, iv – a
Explanation
Reaction (i) is Gattermann-Koch (b), (ii) is Haloform (c), (iii) is Esterification (d), and (iv) is Hell-Volhard-Zelinsky (a). Hence, i-b, ii-c, iii-d, iv-a.
