✓ 3 MARKS
Reasoning / Why
🔥 APPEARED IN 3 BOARD SETS
(a) Arrange the following compounds in the decreasing order of their acidic strength :
Phenol, 4-Nitrophenol, 2,4,6-Trinitrophenol
(b) Why are alcohols more soluble in water than hydrocarbons of comparable molecular masses ?
(c) Name the reagent used in the oxidation of a primary unsaturated alcohol to an aldehyde.
01 // VERIFIED BOARD OCCURRENCES
| Year | Paper Code | Set | Position |
|---|---|---|---|
| CBSE 2026 | Series 56-7 | Set 1 | Question 23 |
| CBSE 2026 | Series 56-7 | Set 2 | Question 24 |
| CBSE 2026 | Series 56-7 | Set 3 | Question 23 |
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)