MCQ

CH17 - HYDROXY COMPOUNDS

The diagram shows an experiment.Which processes could be demonstrated by using the above apparatus?1. the oxidation of ethanol (the liquid X)2. the de...

2009 Winter

Theory

CH17 - HYDROXY COMPOUNDS

The fermentation of starch or molasses using the bacterium Clostridium acetobutylicum, produces a mixture of propanone and butan-1-ol. (a) Give the r...

2009 Winter

Theory

CH17 - HYDROXY COMPOUNDS

Cyclohexanol and phenol are both solids with low melting points that are fairly soluble in water. (a) Explain why these compounds are more soluble ...

2009 Winter

MCQ

CH17 - HYDROXY COMPOUNDS

What will react differently with the two isomeric alcohols, $(\text{CH}_3)_3\text{CCH}_2\text{OH}$ and $(\text{CH}_3)_2\text{CHCH}_2\text{CH}_2\text{O...

2010 Summer

MCQ

CH17 - HYDROXY COMPOUNDS

What will react differently with the two isomeric alcohols, $(CH_{3})_{3}CCH_{2}OH$ and $(CH_{3})_{2}CHCH_{2}CH_{2}OH$?

2010 Summer

Theory

CH17 - HYDROXY COMPOUNDS

An organic compound, E, has the following composition by mass: C, 48.7%; H, 8.1%; O, 43.2%. (a) Calculate the empirical formula of E. (b) When vapo...

2010 Summer

MCQ

CH17 - HYDROXY COMPOUNDS

Which alcohol gives only one possible oxidation product when warmed with dilute acidified potassium dichromate(VI)?

2010 Winter

MCQ

CH17 - HYDROXY COMPOUNDS

Which alcohol gives only one possible oxidation product when warmed with dilute acidified potassium dichromate(VI)?

2010 Winter

MCQ

CH17 - HYDROXY COMPOUNDS

The responses A to D should be selected on the basis of [Table_1: A: 1, 2 and 3 are correct B: 1 and 2 only are correct C: 2 and 3 only are corr...

2010 Winter

Theory

CH17 - HYDROXY COMPOUNDS

Menthol and menthone, the main constituents of oil of peppermint, can be made synthetically from thymol by the following route.(a) State the \textit{t...

2010 Winter

Theory

CH1 - ATOMS, MOLECULES & STOICHIOMETRY

Some intercontinental jet airliners use kerosene as fuel. The formula of kerosene may be taken as $C_{14}H_{30}$.(a) To which homologous series of com...

2011 Summer

Theory

CH15 - HYDROCARBONS

(a) (i) What is meant by the term `cracking` and why is it carried out?..................................................................................

2011 Summer

Theory

CH10 - GROUP 2

(a) State the formula of each of the calcium compounds U to Y.   U V W X Y (b) Compound Y may be converted into compound V. Out...

2011 Summer

Theory

CH18 - CARBONYL COMPOUNDS

Ketones are widely used as solvents and as intermediates in the chemical industry.Ketones contain the reactive keto group, $\text{C=O}$.(a) Propanone,...

2011 Summer

Theory

CH5 - CHEMICAL ENERGETICS

(a) When calcium carbide is reacted with water, ethyne and calcium hydroxide are formed. Construct a balanced equation for this reaction. (b) (i) Wh...

2011 Summer

Theory

CH7 - EQUILIBRIA

Ethanoic acid can be reacted with alcohols to form esters, an equilibrium mixture being formed.$$\text{CH}_3\text{CO}_2\text{H} + \text{ROH} \rightlef...

2011 Summer

Theory

CH16 - HALOGEN DERIVATIVES

(a) Use relevant bond energies from the Data Booklet, and the equation below to calculate a value for the bond energy of the C–F bond.CH$_2$ = CH$_2...

2011 Summer

Theory

CH10 - GROUP 2

(a) State the formula of each of the barium compounds R to W.R .................................... S ....................................T .............

2011 Summer

Theory

CH6 - ELECTROCHEMISTRY

(a) (i) Describe, with the aid of a fully labelled diagram, the industrial electrolysis of brine in a diaphragm cell. State what each electrode is mad...

2011 Summer

Theory

CH19 - CARBOXYLIC ACIDS AND DERIVATIVES

Although there are many different types of food eaten around the world, animal fats and/or vegetable oils are commonly used in cooking.Animal fats and...

2011 Summer