✓ 2 MARKS
Reasoning / Why
🔥 APPEARED IN 3 BOARD SETS
(a) What type of deviation from Raoult's law is shown by a mixture of ethanol and acetone? Give reason. OR (b) Define Azeotrope. What type of azeotrope is formed by negative deviation from Raoult's law? Give an example.
01 // VERIFIED BOARD OCCURRENCES
| Year | Paper Code | Set | Position |
|---|---|---|---|
| CBSE 2023 | Series Other | Set 1 | Question 20 |
| CBSE 2023 | Series Other | Set 1 | Question 19 |
| CBSE 2023 | Series Other | Set 1 | Question 21 |
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)