Question

Given below are organic compounds labelled A to F.

Answer the questions that follow:

A.	\[\begin{array}{cc} \phantom{..................}\ce{H}\phantom{........}\ce{O - H}\\ \phantom{..........}|\phantom{........}/\\ \ce{H - C - C}\\ \phantom{..........}|\phantom{......}\backslash\backslash\\ \phantom{...........}\ce{H}\phantom{........}\ce{O}\\ \end{array}\]	B.	\[\begin{array}{cc} \ce{H}\phantom{.....}\ce{H}\\ |\phantom{......}|\\ \ce{H - C - C - O}\\ \phantom{.........}|\phantom{......}|\phantom{.......}\backslash\\ \phantom{..........}\ce{H}\phantom{....}\ce{H}\phantom{.......}\ce{H}\\ \end{array}\]
C.	\[\begin{array}{cc} \phantom{.}\ce{H}\phantom{...........}\ce{H}\\ \backslash\phantom{........}/\\ \ce{C = C}\\ /\phantom{........}\backslash\\ \phantom{.}\ce{H}\phantom{...........}\ce{H}\\ \end{array}\]	D.	\[\begin{array}{cc} \ce{H}\phantom{....}\ce{H}\phantom{....}\ce{H}\phantom{....}\ce{H}\\ |\phantom{......}|\phantom{......}|\phantom{......}|\\ \ce{H - C - C - C - C - H}\\ |\phantom{......}|\phantom{......}|\phantom{......}|\\ \ce{H}\phantom{....}\ce{H}\phantom{....}\ce{H}\phantom{....}\ce{H}\\ \end{array}\]
E.	\[\begin{array}{cc} \ce{H}\phantom{....}\ce{H}\\ |\phantom{......}|\\ \ce{H - C - C - H}\\ |\phantom{......}|\\ \ce{H}\phantom{....}\ce{H}\\ \end{array}\]	F.	\[\begin{array}{cc} \ce{H}\phantom{....}\ce{H}\phantom{....}\ce{H}\\ |\phantom{......}|\phantom{......}|\\ \ce{H - C - C - C - H}\\ |\phantom{......}|\phantom{......}|\\ \ce{H}\phantom{.....}|\phantom{.....}\ce{H}\\ \ce{H - C - H}\\ |\\ \ce{H}\\ \end{array}\]

1. Which compound forms a single product with bromine?
2. Which two compounds have the same molecular formula?
3. Which two compounds will react together in the presence of concentrated H₂SO₄ to form a product with a fruity smell?

Answer 1

1. Compound C will form a single product with bromine, as it is an alkene.
2. Compounds D and F have the same molecular formula, which is C₄H₁₀.
3. Alcohol and acetic acid react in the presence of concentrated sulphuric acid to produce esters with a fruity smell; hence, compounds A and B will react, as A is acetic acid and B is an alcohol.