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Per NCERT §8.4.1, a FUNCTIONAL GROUP in an organic molecule is best described as which kind of feature?
AAtom or group giving characteristic reactions
BOnly an alkyl branch on parent chain
CCarbon skeleton only with no heteroatoms
DOnly a halogen substituent on chain
Answer & Solution
Correct answer: A. Atom or group giving characteristic reactions
NCERT §8.4.1: functional group = atom/atoms bonded to C chain, responsible for characteristic chemistry (e.g. -OH, -CHO, -COOH).
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