Question

Which of these hydrocarbons has a double bond in its carbon skeleton?

a. C3H8
b. C2H6
c. CH4
d. C2H4

(I don't know how to find out if their is a double bond based on the molecular formula)

Answer 1

Option d (C2H4) is the hydrocarbon that has a double bond in its carbon skeleton.

Step-by-step explanation:

In order to determine if a hydrocarbon has a double bond in its carbon skeleton, we can analyze its molecular formula. A hydrocarbon with a double bond will have the general formula CnH2n. In this case, the options are:

1. a. C3H8 - This does not follow the general formula for a hydrocarbon with a double bond.
2. b. C2H6 - This does not follow the general formula for a hydrocarbon with a double bond.
3. c. CH4 - This does not follow the general formula for a hydrocarbon with a double bond.
4. d. C2H4 - This follows the general formula CnH2n and therefore has a double bond in its carbon skeleton.

Based on the analysis, option d (C2H4) is the hydrocarbon that has a double bond in its carbon skeleton.

Answer 2

A and c because I had the same problem and I picked a and it was a and c