Which of the following is an organic compound? 11 o ammonia (NH3) o calcium sulfide (CaS) O octane (C3H18) o sulfur trioxide (SO3) Save and Exit Nec​

Five.

Explanation:

There are five isomers that is present in hexane (C⁶H¹⁴) which consist of n- hexane, 2- methyl pentane, 3- methyl pentane, 2, 3-dimethylbutane and 2, 2- dimethylbutane. 2- methyl pentane is also known as Isohexane while on the other hand, 2, 2- dimethyl butane also known as Neohexane. These isomers have the same molecular formula which is C6H14, and having the same molecular weight which is 86.

i think that the best answer would be c.

tell me if im wrong : )