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

CH8 - REACTION KINETICS

The diagram shows a Boltzmann distribution of molecular energies for a gaseous mixture. The distribution has a peak, labelled P on the diagram. What h...

2015 Summer

MCQ

CH3 - CHEMICAL BONDING

Which quantity gives the best indication of the relative strengths of the hydrogen bonds between the molecules in liquid hydrogen halides?

2015 Summer

MCQ

CH1 - ATOMS, MOLECULES & STOICHIOMETRY

Use of the Data Booklet is relevant to this question.1.00 g of carbon is combusted in a limited supply of pure oxygen. 0.50 g of the carbon combusts t...

2015 Summer

MCQ

CH6 - ELECTROCHEMISTRY

In oxygen difluoride, $\text{OF}_2$, fluorine has an oxidation number of $-1$. $\text{OF}_2$ will react with sulfur dioxide according to the following...

2015 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 below.$pV = nRT$0.96 g of oxygen gas is ...

2015 Summer

MCQ

CH7 - EQUILIBRIA

One mole of phosphorus(V) chloride, $\text{PCl}_5$, is heated to 600 K in a sealed flask of volume 1 dm$^3$. Equilibrium is established and measuremen...

2015 Summer

MCQ

CH5 - CHEMICAL ENERGETICS

The standard enthalpy changes of combustion of glucose and ethanol are given as −2820 and −1368 kJ molˉ¹ respectively.Glucose, C$_6$H$_{12}$O$_6...

2015 Summer

MCQ

CH7 - EQUILIBRIA

In which reaction is the underlined substance acting as a base? A. $\text{HNO}_3 + \underline{\text{H}_2\text{SO}_4} \rightarrow \text{H}_2\text{NO}_...

2015 Summer

MCQ

CH7 - EQUILIBRIA

One molecule of haemoglobin, Hb, can bind with four molecules of oxygen according to the following equation. $$\text{Hb(aq)} + 4\text{O}_2\text{(aq)}...

2015 Summer

MCQ

CH3 - CHEMICAL BONDING

The double bond between the two carbon atoms in an ethene molecule consists of one \( \sigma \) bond and one \( \pi \) bond.Which orbitals overlap to ...

2015 Summer