✓ 3 MARKS
Short Answer
🔥 APPEARED IN 3 BOARD SETS
(a) Write reasons for the following : (i) Ethylamine is soluble in water whereas aniline is insoluble. (ii) Amino group is o- and p-directing in aromatic electrophilic substitution reactions, but aniline on nitration gives a substantial amount of m-nitroaniline. (iii) Amines behave as nucleophiles. OR
01 // VERIFIED BOARD OCCURRENCES
| Year | Paper Code | Set | Position |
|---|---|---|---|
| CBSE 2022 | Series 56-4 | Set 1 | Question 4 |
| CBSE 2022 | Series 56-4 | Set 2 | Question 7 |
| CBSE 2022 | Series 56-4 | Set 3 | Question 7 |
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)