✓ 3 MARKS
Reasoning / Why
🔥 APPEARED IN 3 BOARD SETS
(a) What type of nucleophilic substitution ($S_N1$ or $S_N2$) occurs in the hydrolysis of 2-Bromobutane to form $(\pm)$-Butan-2-ol ? Give reason. (b) What happens when chlorobenzene and methyl chloride are treated with sodium metal in dry ether ?
01 // VERIFIED BOARD OCCURRENCES
| Year | Paper Code | Set | Position |
|---|---|---|---|
| CBSE 2024 | Series 56-3 | Set 1 | Question 25 |
| CBSE 2024 | Series 56-3 | Set 2 | Question 26 |
| CBSE 2024 | Series 56-3 | Set 3 | Question 22 |
02 // OFFICIAL CBSE MARKING SCHEME BREAKDOWN
- Step 1: Stating the fundamental formula / law statement (+1 Mark)
- Step 2: Intermediate mathematical substitution or proof steps (+1 Mark)
- Step 3: Correct final value or conclusion with mandatory SI units (+1 Mark)