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

CH10 - GROUP 2

(a) (i) Write an equation, with state symbols, for the second ionisation energy of calcium...............................................................

2009 Summer

MCQ

CH10 - GROUP 2

Use of the Data Booklet is relevant to this question.The graph represents the variation of a property of the Group II elements.What is this property?

2009 Winter

Theory

CH10 - GROUP 2

(a) Radium has chemical reactions that are typical of Group II metals and forms ionic compounds. (i) What is the characteristic feature of the electr...

2009 Winter

Theory

CH10 - GROUP 2

(a) Describe and explain qualitatively the trend in the solubilities of the sulfates of the Group II elements. (b) The major ore of barium is barytes...

2009 Winter

MCQ

CH10 - GROUP 2

Which property of Group II elements (beryllium to barium) decreases with increasing atomic number?

2010 Summer

MCQ

CH10 - GROUP 2

Use of the Data Booklet is relevant to this question. 2.920 g of a Group II metal, X, reacts with an excess of chlorine to form 5.287 g of a compound...

2010 Summer

MCQ

CH10 - GROUP 2

Which property of Group II elements (beryllium to barium) decreases with increasing atomic number?

2010 Summer

Theory

CH10 - GROUP 2

(a) Describe and explain how the solubilities of the sulfates of the Group II elements vary down the group...............................................

2010 Summer

Theory

CH10 - GROUP 2

(a) Describe and explain how the solubilities of the sulfates of the Group II elements vary down the group...............................................

2010 Summer

Theory

CH2 - ATOMIC STRUCTURE

(a) Complete the table to show the composition and identity of some atoms and ions.[Table]name of element | nucleon number | atomic number | number of...

2016 Summer

Theory

CH4 - STATES OF MATTER

D, E, F, and G are four consecutive elements in the fourth period of the Periodic Table. (The letters are not the actual symbols of the elements.)D is...

2016 Summer

Theory

CH10 - GROUP 2

The elements in Group 2, and their compounds, show many similarities and trends in their properties.(a) Magnesium, calcium, strontium and barium all r...

2016 Summer

Theory

CH14 - AN INTRODUCTION TO ORGANIC CHEMISTRY

This question is about molecules with molecular formula $C_4H_8$.(a) Give the structures of a pair of **positional** isomers with the formula $C_4H_8$...

2016 Summer

Theory

CH22 - ANALYTICAL TECHNIQUES

(a) Complete the diagram to show the mechanism of reaction 1. Include all necessary charges, partial charges, lone pairs and curly arrows.H3C—C—Br...

2016 Summer

Theory

CH2 - ATOMIC STRUCTURE

(a) Complete the table to show the composition and identity of some atoms and ions.[Table_1]name of element | nucleon number | atomic number | number ...

2016 Summer

Theory

CH5 - CHEMICAL ENERGETICS

The elements in Group 17, the halogens, and their compounds, show many similarities and trends in their properties. Some data are given for the elemen...

2016 Summer

Theory

CH6 - ELECTROCHEMISTRY

Acidified potassium dichromate(VI) can oxidise ethanedioic acid, $H_2C_2O_4$. The relevant half-equations are shown. $$Cr_2O_7^{2-} + 14H^+ + 6e^- \r...

2016 Summer

Theory

CH22 - ANALYTICAL TECHNIQUES

This question is about molecules with molecular formula $C_4H_8O_2$.(a) Give the structural formulae of the pair of extbf{chain} isomers with the for...

2016 Summer

Theory

CH17 - HYDROXY COMPOUNDS

A reaction sequence based on propan-1-ol is shown. (a) Reactions 1 and 2 can both be carried out using the same reagents. (i) Identify suitable rea...

2016 Summer