Alkanes

15. ​​ M/J 2018/P11/Q36

Which formula represents an alkane?

A  ​​​​ C31H33 ​​ ​​​​ B  ​​​​ C31H60 ​​ ​​​​ C  ​​​​ C31H62 ​​ ​​​​ D  ​​​​ C31H64

Answer: ​​ D

Explaination

Alkanes are saturated HC and the general formula for all alkane compound is same i.e: CnH2n+2.​​ By using this formula we can get the correct molecule belongs to alkane family.

 

Hence option D:​​ C31H64 ​​ is an ​​ alkane molecule as they fit in alkane general formula having same number of atoms as in molecular formula.