JEE MAIN - Chemistry (2005 - No. 14)
2 methylbutane on reacting with bromine in the presence of sunlight gives mainly
1 – bromo -2 - methylbutane
2 – bromo -2 - methylbutane
2 – bromo -3 - methylbutane
1 – bromo -3 – methylbutane
Uitleg
Ease of replacement of $$H$$-atom $${3^ \circ } > {2^ \circ } > {1^ \circ }.$$