Question

Given below is a four carbon skeleton of a hydrocarbon compound.

(a) Fill in the hydrogen atoms/bonds to form:

(i) a saturated hydrocarbon

(ii) an unsaturated hydrocarbon

(b) If the four-carbon skeleton is of a straight chained alkene, draw the structures of all the possible compounds.

OR

If the four-carbon skeleton is of a straight chained alkyne:

(i) How many carbon atoms may NOT be bonded to any hydrogen atoms?

(ii) How many hydrogen atoms will there be in the compound?

Answer 1

(i)

 

(b) H₃C - CH₂ -CH =CH₂   H₃C - CH₂ = CH - CH₃ 

OR 

(i) one or two 

(ii) six