An introduction to A Level organic chemistry

Acebutolol is a medicine that can be used to reduce blood pressure.

Feb/March 2016

Progress in nanotechnology and drug delivery during the last 20 years has been extensive.

May/June 2012

A skeletal formula is displayed. What is the total number of stereoisomers, including the one shown?

May/June 2022

Testosterone is an optically active organic molecule. How many chiral centres are present in one molecule of testosterone?

May/June 2025

Hydrogen is one possible energy source for future road vehicles. A difficulty that still needs solving is how to keep the hydrogen in the vehicle. A standard tank containing liquid hydrogen would need to be both pressurised and refrigerated. If such a tank were damaged in a collision, it could rupture, causing hydrogen to escape very quickly and explode. Another option is a fuel tank filled with carbon nanotubes. Inside the tank, the hydrogen would be adsorbed onto the nanotube surface at a pressure of only a few atmospheres.

Oct/Nov 2010

Compound $C$ has molecular formula $\text{C}_7\text{H}_{14}\text{O}$. When $C$ is treated with hot concentrated acidified $\text{KMnO}_4(\text{aq})$, the products are two compounds, $D$, $\text{C}_4\text{H}_8\text{O}$, and $E$, $\text{C}_3\text{H}_4\text{O}_3$. The outcomes from four tests performed on these three compounds are displayed in the table.

Oct/Nov 2011

Ibuprofen and paracetamol are medicines used for pain relief.

Oct/Nov 2016

Compound A may be made from a plant hormone.

Oct/Nov 2017

Fig. 7.1 shows the structure of compound $\text{P}$.

Oct/Nov 2022

Chlorobenzene forms when benzene reacts with chlorine gas. This can be viewed as benzene molecules reacting with $\text{Cl}^+$ ions. A suitable catalyst added to the chlorine gas produces the $\text{Cl}^+$ ions.

Oct/Nov 2024