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

MCQ

CH2 - ATOMIC STRUCTURE

In which species does the underlined atom have an incomplete outer shell?

2012 Summer

MCQ

CH7 - EQUILIBRIA

Ammonia is manufactured by the Haber Process, in an exothermic reaction. Assuming that the amount of catalyst remains constant, which change will not ...

2012 Summer

MCQ

CH5 - CHEMICAL ENERGETICS

The equation for a reaction is shown.$\text{H}_2(g) + \frac{1}{2}\text{O}_2(g) \rightarrow \text{H}_2\text{O}(l) ; \Delta H = x \text{ kJ mol}^{-1}$Wh...

2012 Summer

MCQ

CH2 - ATOMIC STRUCTURE

The value of the second ionisation energy of calcium is 1150 kJ mol^{-1}. Which equation correctly represents this statement?

2012 Summer

MCQ

CH3 - CHEMICAL BONDING

Two conversions are outlined below.$$\text{NH}_4^+ \rightarrow \text{NH}_3$$$$\text{C}_2\text{H}_4 \rightarrow \text{C}_2\text{H}_6$$What similar feat...

2012 Summer

MCQ

CH4 - STATES OF MATTER

Use of the Data Booklet is relevant to this question.The gas laws can be summarised in the ideal gas equation.$pV = nRT$0.56 g of ethene gas is contai...

2012 Summer

MCQ

CH5 - CHEMICAL ENERGETICS

Propanone has the molecular formula $C_3H_6O$.The enthalpy change of combustion of hydrogen is $-286\text{ kJ mol}^{-1}$.The enthalpy change of combus...

2012 Summer

MCQ

CH4 - STATES OF MATTER

Under which set of conditions is a gas most likely to behave ideally? [Table_1]

2012 Summer

MCQ

CH7 - EQUILIBRIA

Two moles of compound P were placed in a vessel. The compound P was partly decomposed by heating. A dynamic equilibrium between chemicals P, Q and R w...

2012 Summer

MCQ

CH1 - ATOMS, MOLECULES & STOICHIOMETRY

The oxide of titanium, TiO₂, is used as a ‘whitener’ in toothpaste. It is obtained from the ore iron(II) titanate, FeTiO₃.What is the change, ...

2012 Summer