MCQ

CH18 - CARBONYL COMPOUNDS

The naturally-occurring molecule civetone is found in a gland of the African civet cat and has been used in perfumery.With which reagent will civetone...

2009 Winter

MCQ

CH18 - CARBONYL COMPOUNDS

Cyanohydrins can be made from carbonyl compounds by generating $\text{CN}^-\text{ ions}$ from HCN in the presence of a weak base.In a similar reaction...

2009 Winter

MCQ

CH18 - CARBONYL COMPOUNDS

A compound has a relative molecular mass of 88 and its molecule contains only four carbon atoms. What could this compound be?

2009 Winter

MCQ

CH18 - CARBONYL COMPOUNDS

Which reagent will give similar results with both butanone and butanal?

2010 Summer

MCQ

CH18 - CARBONYL COMPOUNDS

What is formed when propanone is refluxed with a solution of NaBH₄?

2010 Summer

MCQ

CH18 - CARBONYL COMPOUNDS

Propanoic acid occurs naturally as a result of the bacterial fermentation of milk, and is partly responsible for the flavour of Swiss cheese.![propano...

2010 Summer

MCQ

CH18 - CARBONYL COMPOUNDS

The diagram shows some laboratory apparatus. Which preparations could this apparatus be used for?1. bromoethane, from ethanol, sodium bromide and conc...

2010 Summer

MCQ

CH18 - CARBONYL COMPOUNDS

Which reagent will give similar results with both butanone and butanal?

2010 Summer

MCQ

CH18 - CARBONYL COMPOUNDS

What is formed when propanone is refluxed with a solution of NaBH$_4$?

2010 Summer

MCQ

CH18 - CARBONYL COMPOUNDS

The diagram shows some laboratory apparatus.Which preparations could this apparatus be used for?1. bromoethane, from ethanol, sodium bromide and conce...

2010 Summer

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