✓ 1 MARKS
MCQ
🔥 APPEARED IN 3 BOARD SETS
The mole fraction of a solute in $2\cdot 0$ molal aqueous solution is :
A
$1\cdot 87$
B
$0\cdot 347$
C
$0\cdot 0347$
D
$0\cdot 00347$
01 // VERIFIED BOARD OCCURRENCES
| Year | Paper Code | Set | Position |
|---|---|---|---|
| CBSE 2026 | Series 56-3 | Set 1 | Question 9 |
| CBSE 2026 | Series 56-3 | Set 2 | Question 1 |
| CBSE 2026 | Series 56-3 | 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)