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

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