Question

In neopentane the number of primary
(19) carbons and quaternary
hydrogens are respectively
(A) 4,0
(B) 12,1
(C) 4,1
(D) 3,3​

Answer 1

Answer :                      [2] ch3

[A]                   [1]   ch3 -  c [5]  - ch3 [3]     join the bonds between 2,4,5

                                   [4]  ch3

this is the shape of neopentane

here 1 , 2 , 3, 4 are primary carbons and 5 is quartenary carbon but there are no hydrogens attached to it

Explanation:

so there are 4 primary carbons and 0 quartenary hydrogens