✓ 2 MARKS
Very Short Answer
🔥 APPEARED IN 3 BOARD SETS
An alkyl halide
A
of molecular formula $\text{C}_6\text{H}_{13}\text{Cl}$ on treatment with alcoholic KOH gives two isomeric alkenes
B
and
C
of molecular formula $\text{C}_6\text{H}_{12}$. Both alkenes on hydrogenation give 2,3-dimethylbutane. Write the structures of
A
,
B
and
C
.
01 // VERIFIED BOARD OCCURRENCES
| Year | Paper Code | Set | Position |
|---|---|---|---|
| CBSE 2023 | Series Other | Set 1 | Question 19 |
| CBSE 2023 | Series Other | Set 1 | Question 20 |
| CBSE 2023 | Series Other | Set 1 | Question 24 |
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)