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

CH3 - CHEMICAL BONDING

The Pauling electronegativity values of elements can be used to predict the chemical properties of compounds.Use the information in Table 1.1 to answe...

2023 Spring

Theory

CH10 - GROUP 2

The Group 2 elements Mg to Ba are all silvery-white reactive metals.(a) (i) Draw a labelled diagram to show the bonding and structure of the Group 2 m...

2023 Spring

Theory

CH15 - HYDROCARBONS

(a) (i) Define addition reaction.........................................................................................................................

2023 Spring

Theory

CH16 - HALOGEN DERIVATIVES

(a) (i) State the reagent and conditions used to form E in reaction 1....................................................................................

2023 Spring

Theory

CH2 - ATOMIC STRUCTURE

(a) The most common zinc mineral contains zinc(II) sulfide, ZnS.(i) Complete the electrons in boxes diagram in Fig. 1.1 to show the electronic configu...

2023 Spring

Theory

CH6 - ELECTROCHEMISTRY

Hypophosphorous acid is an inorganic acid.The conjugate base of hypophosphorous acid is $\text{H}_2\text{PO}_2^-$.(a) Give the formula of hypophosphor...

2023 Spring

Theory

CH12 - AN INTRODUCTION TO THE CHEMISTRY OF TRANSITION ELEMENTS

Vanadium is a transition element in Period 4 of the Periodic Table.(a) Define transition element.........................................................

2023 Spring

Theory

CH20 - NITROGEN COMPOUNDS

Ethylamine and phenylamine are primary amines.Fig. 4.1These two compounds are synthesised by different methods.(a) Several methods can be used to form...

2023 Spring

Theory

CH14 - AN INTRODUCTION TO ORGANIC CHEMISTRY

(a) Tulobuterol contains a benzene ring in its structure.Describe and explain the shape of benzene.In your answer, include:• the bond angle between ...

2023 Spring

Theory

CH22 - ANALYTICAL TECHNIQUES

(a) (i) Suggest a compound that could be used as the stationary phase in this experiment.................................................................

2023 Spring