MCQ

CH14 - AN INTRODUCTION TO ORGANIC CHEMISTRY

Most modern cars are fitted with three-way catalytic converters in the exhaust system. Which three gases are removed by such a catalytic converter?

2009 Winter

MCQ

CH14 - AN INTRODUCTION TO ORGANIC CHEMISTRY

The drug cortisone has the formula shown. In addition to those chiral centres marked by an asterisk (*), how many other chiral centres are present in ...

2009 Winter

MCQ

CH14 - AN INTRODUCTION TO ORGANIC CHEMISTRY

The chlorine free radical takes part in the destruction of the ozone layer. Which statements about this free radical are correct?1. It is formed by th...

2009 Winter

MCQ

CH14 - AN INTRODUCTION TO ORGANIC CHEMISTRY

Which compound exhibits both cis-trans and optical isomerism?

2010 Summer

MCQ

CH14 - AN INTRODUCTION TO ORGANIC CHEMISTRY

Which compound exhibits both $\textit{cis-trans}$ and optical isomerism?

2010 Summer

Theory

CH14 - AN INTRODUCTION TO ORGANIC CHEMISTRY

(a) (i) Explain what is meant by structural isomerism. (ii) State two different features of molecules that can give rise to stereoisomerism.(b) Give ...

2010 Summer

Theory

CH14 - AN INTRODUCTION TO ORGANIC CHEMISTRY

Organic reactions involve substances which may beatoms, molecules, ions or free radicals.We also apply the termselectrophilic, nucleophilic, addition,...

2010 Summer

MCQ

CH14 - AN INTRODUCTION TO ORGANIC CHEMISTRY

Compound X reacts with ethanoic acid in the presence of an $H^+$ catalyst to produce the compound below. What is the molecular formula of compound ...

2010 Winter

MCQ

CH14 - AN INTRODUCTION TO ORGANIC CHEMISTRY

The compound 2-methylpropene, $C_4H_8$, is a monomer used in the production of synthetic rubber. In addition to 2-methylpropene, there are x other ...

2010 Winter

MCQ

CH14 - AN INTRODUCTION TO ORGANIC CHEMISTRY

The diagram shows the structure of the naturally-occurring molecule cholesterol. Which statements about cholesterol are correct? 1. The molecule cont...

2010 Winter

Theory

CH1 - ATOMS, MOLECULES & STOICHIOMETRY

Some intercontinental jet airliners use kerosene as fuel. The formula of kerosene may be taken as $C_{14}H_{30}$.(a) To which homologous series of com...

2011 Summer

Theory

CH15 - HYDROCARBONS

(a) (i) What is meant by the term `cracking` and why is it carried out?..................................................................................

2011 Summer

Theory

CH10 - GROUP 2

(a) State the formula of each of the calcium compounds U to Y.   U V W X Y (b) Compound Y may be converted into compound V. Out...

2011 Summer

Theory

CH18 - CARBONYL COMPOUNDS

Ketones are widely used as solvents and as intermediates in the chemical industry.Ketones contain the reactive keto group, $\text{C=O}$.(a) Propanone,...

2011 Summer

Theory

CH5 - CHEMICAL ENERGETICS

(a) When calcium carbide is reacted with water, ethyne and calcium hydroxide are formed. Construct a balanced equation for this reaction. (b) (i) Wh...

2011 Summer

Theory

CH7 - EQUILIBRIA

Ethanoic acid can be reacted with alcohols to form esters, an equilibrium mixture being formed.$$\text{CH}_3\text{CO}_2\text{H} + \text{ROH} \rightlef...

2011 Summer

Theory

CH16 - HALOGEN DERIVATIVES

(a) Use relevant bond energies from the Data Booklet, and the equation below to calculate a value for the bond energy of the C–F bond.CH$_2$ = CH$_2...

2011 Summer

Theory

CH10 - GROUP 2

(a) State the formula of each of the barium compounds R to W.R .................................... S ....................................T .............

2011 Summer

Theory

CH6 - ELECTROCHEMISTRY

(a) (i) Describe, with the aid of a fully labelled diagram, the industrial electrolysis of brine in a diaphragm cell. State what each electrode is mad...

2011 Summer

Theory

CH19 - CARBOXYLIC ACIDS AND DERIVATIVES

Although there are many different types of food eaten around the world, animal fats and/or vegetable oils are commonly used in cooking.Animal fats and...

2011 Summer