MCQ

CH16 - HALOGEN DERIVATIVES

The following diagram represents the structure of a possible polymer.By which method might this polymer be made?

2009 Winter

MCQ

CH16 - HALOGEN DERIVATIVES

Which statements about the reaction of solid sodium bromide with concentrated sulfuric acid are correct?1. Hydrogen bromide is a product of the reacti...

2009 Winter

MCQ

CH16 - HALOGEN DERIVATIVES

Which statements are true for an $S_N2$ reaction? 1. One bond is broken as another bond is formed. 2. The formation of a transition state involves t...

2009 Winter

Theory

CH16 - HALOGEN DERIVATIVES

One method of making 1-bromobutane in the laboratory is described below.[Table_1](a) The overall reaction may be considered to take place in two stage...

2009 Winter

MCQ

CH16 - HALOGEN DERIVATIVES

In many countries plastic waste is collected separately and sorted. Some of this is incinerated to provide heat for power stations.Why is PVC, polyvin...

2010 Summer

MCQ

CH16 - HALOGEN DERIVATIVES

When an isomer Y of molecular formula C₄H₉Br undergoes hydrolysis in aqueous alkali to form an alcohol C₄H₉OH, the rate of reaction is found t...

2010 Summer

MCQ

CH16 - HALOGEN DERIVATIVES

Which reactions are examples of nucleophilic substitution?1. $\text{CH}_3\text{CH}_2\text{Br} + \text{OH}^- \rightarrow \text{CH}_3\text{CH}_2\text{OH...

2010 Summer

MCQ

CH16 - HALOGEN DERIVATIVES

When an isomer Y of molecular formula C_4H_9Br undergoes hydrolysis in aqueous alkali to form an alcohol C_4H_9OH, the rate of reaction is found to be...

2010 Summer

MCQ

CH16 - HALOGEN DERIVATIVES

Which reactions are examples of nucleophilic substitution? 1. $\text{CH}_3\text{CH}_2\text{Br} + \text{OH}^- \rightarrow \text{CH}_3\text{CH}_2\text{...

2010 Summer

MCQ

CH16 - HALOGEN DERIVATIVES

Which compound undergoes an $S_N1$ substitution reaction?

2010 Winter

Theory

CH1 - ATOMS, MOLECULES & STOICHIOMETRY

Copper and titanium are each used with aluminium to make alloys which are light, strong and resistant to corrosion. Aluminium, $Al$, is in the third p...

2009 Summer

Theory

CH10 - GROUP 2

Magnesium will react on heating with chlorine, or oxygen, or nitrogen to give the chloride, or oxide, or nitride respectively. Each of these compounds...

2009 Summer

Theory

CH15 - HYDROCARBONS

Concern over the ever-increasing use of fossil fuels has led to many suggestions for alternative sources of energy. One of these, suggested by Profess...

2009 Summer

Theory

CH22 - ANALYTICAL TECHNIQUES

(a) Complete the following reaction scheme which starts with ethanol.In each empty box, write the structural formula of the organic compound that woul...

2009 Summer

Theory

CH22 - ANALYTICAL TECHNIQUES

(a) When F is formed in step I no other compound is produced. Suggest a structural formula for F, which contains one –OH group.(b) Compound G has tw...

2009 Summer

Theory

CH1 - ATOMS, MOLECULES & STOICHIOMETRY

(a) Complete the electronic configuration of aluminium and of titanium, proton number 22.\[\begin{array}{|c|c|} \hline \text{Al} & 1s^2 \\ \hline \tex...

2009 Summer

Theory

CH10 - GROUP 2

(a) (i) Write an equation, with state symbols, for the second ionisation energy of calcium...............................................................

2009 Summer

Theory

CH15 - HYDROCARBONS

Concern over the ever-increasing use of fossil fuels has led to many suggestions for alternative sources of energy. One of these, suggested by Profess...

2009 Summer

Theory

CH22 - ANALYTICAL TECHNIQUES

(a) Complete the following reaction scheme which starts with propanone. In each empty box, write the structural formula of the organic compound that w...

2009 Summer

Theory

CH22 - ANALYTICAL TECHNIQUES

Ethanol, CH$_3$CHO, can be converted into compound U by the following sequence.(a) When T is formed in step I, no other compound is produced.Suggest a...

2009 Summer