Question

Which of the following compounds contains 1°, 2°, 3° as well as 4° carbon atoms ?
(a) Neopentane
(b) 2-methyl pentane
(c) 2,3-dimethyl butane
(d) 2,2,3-trimethyl pentane

Answer 1

(a) as here is pent
so there are 5 carbon atoms
(b) as here is pent as well as methyl
so there are 6 carbon atoms
and in carbon chain there are 5
(c) as here is but as well as dimethyl
so there are 6 carbon atoms
and in carbon chain there are 4
(d) as here is pent as well as trimethyl
so there are 8 carbon atoms
and in carbon chain there are 5


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