Which of the following homologous series has an incorrect general formula?

Product $(B)$ of the reaction is

Give the isomers of $C_3H_6$ and their names.

Predict the product $(A)$ of the following reaction:

The major products from the following reaction sequence are product $A$ and product $B$. The total sum of $\pi$ electrons in product $A$ and product $B$ are . . . . . . .(nearest integer)

Which of the following reactions produce$(s)$ propane as a major product?