Question

A hydrocarbon with this formula C2H6:
A) is an alkane
B) is an alkene
C) is an alkyne
D) indeterminate

Answer 1

General formula of alkane is C(n)H(2n+2).
General formula of alkene is C(n)H(2n).
General formula of alkyne is C(n)H(2n-2).
So, C2H6 = C(2)H(2*2+6) =C(2)H(8)

Answer: A. C2H6 is an alkane.

Answer 2

Answer: Option (A) is the correct answer.

Explanation:

For alkanes general formula is $C_{n}H_{2n + 2}$, where n is any integer.

For alkenes general formula is $C_{n}H_{2n}$, where n is any integer.

For alkynes general formula is $C_{n}H_{2n - 2}$, where n is any integer.

Since, formula of given hydrocarbon is $C_{2}H_{6}$. Therefore, here n equals to 1 as $C_{2}H_{2(2) + 2}$ equals $C_{2}H_{6}$.

Hence, we can conclude that given hydrocarbon is alkane.