NEETChemistryGeneral Organic Chemistry
In DNA and RNA, nitrogen atom is present in the ring system. Can Kjeldahl method be used for the estimation of nitrogen present in these? Give reasons.
Options
- AYes, because the Kjeldahl method can accurately estimate nitrogen in all nitrogen-containing compounds.
- BYes, but with modifications, as DNA and RNA require a special sample preparation process.
- CNo,DNA and RNA have nitrogen in the heterocyclic rings. Nitrogen present in rings, azo groups and nitro groups
- DNo, because DNA and RNA do not contain nitrogen atoms.
Correct answer
C. No,DNA and RNA have nitrogen in the heterocyclic rings. Nitrogen present in rings, azo groups and nitro groups
Step-by-step solution
Correct Option is : (C) No,DNA and RNA have nitrogen in the heterocyclic rings. Nitrogen present in rings, azo groups and nitro groups cannot be removed as ammonia.