Which of the following alkanes has only primary hydrogen atoms?

The alkane which has only primary hydrogen atom is

The alkane which has only primary hydrogen atoms is

Which of the following Alkane can not be prepared by hydrogenation of Olefin

Which of the following Alkane can not be prepared by hydrogenation of Olefine-

Which of the following alkanes has no net dipole moment ?

Which of the following alkane has longest Carbon chain :

Which of the following compounds has only secondary carbon atoms ?

Which of the following alkanes contains primary, secondary , tertiary and quaternary carbon atoms together ?