The number of hybridised carbons in an acyclic neutral compound with molecular formula is:
Answer: 1
Solution
First, calculate the degree of unsaturation (DU):
With 3 degrees of unsaturation, possible structures include:
For an acyclic compound with maximum carbons, consider:
(but-3-ene-1-nitrile)
This has:
Number of carbons = 1
With 3 degrees of unsaturation, possible structures include:
- One triple bond + one double bond
- Three double bonds
- Combinations with rings
For an acyclic compound with maximum carbons, consider:
(but-3-ene-1-nitrile)
This has:
- C1: (in )
- C2: (in )
- C3: (in )
- C4: (methyl group)
Number of carbons = 1

JEE Main · 2022 · 25 Jul 2022 · Shift 1 · Integer answer