Per NCERT §9.2.3, the rate of substitution of HYDROGENS in alkane halogenation goes in which order (by carbon class)?
A2° > 3° > 1°
B1° > 2° > 3°
CAll equal
D3° > 2° > 1°
Answer & Solution
Correct answer: D. 3° > 2° > 1°
NCERT §9.2.3: 3° > 2° > 1° (matches free-radical stability — tertiary radical is most stable).
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