MCQ

CH16 - SOME NON-METALS AND THEIR COMPOUNDS

The carbon cycle includes the processes combustion, photosynthesis and respiration. Which row shows how each process changes the amount of carbon diox...

2017 Summer

2

MCQ

CH16 - SOME NON-METALS AND THEIR COMPOUNDS

Which statement about the conditions used in the Haber process is not correct?

2017 Summer

2

MCQ

CH16 - SOME NON-METALS AND THEIR COMPOUNDS

The gases coming from a car’s engine contain oxides of nitrogen.How are these oxides formed?

2016 Summer

2

MCQ

CH16 - SOME NON-METALS AND THEIR COMPOUNDS

Ammonia is manufactured by a reversible reaction.$$\text{N}_2(g) + 3\text{H}_2(g) \rightleftharpoons 2\text{NH}_3(g)$$The forward reaction is exotherm...

2016 Summer

1

MCQ

CH16 - SOME NON-METALS AND THEIR COMPOUNDS

Which statement about sulfuric acid is correct?

2017 Summer

2

MCQ

CH16 - SOME NON-METALS AND THEIR COMPOUNDS

Statements about methods of manufacture and uses of calcium oxide are shown.1. It is manufactured by reacting acids with calcium carbonate.2. It is ma...

2017 Summer

2

MCQ

CH16 - SOME NON-METALS AND THEIR COMPOUNDS

The Contact process is used for the manufacture of sulfuric acid. Which statement about this process is not correct?

2016 Summer

2

MCQ

CH16 - SOME NON-METALS AND THEIR COMPOUNDS

Lime (calcium oxide) is used to treat waste water from a factory. Which substance is removed by the lime?

2016 Summer

2

MCQ

CH16 - SOME NON-METALS AND THEIR COMPOUNDS

Calcium nitrate decomposes when it is heated.What is the equation for the thermal decomposition of calcium nitrate?

2017 Winter

2

MCQ

CH16 - SOME NON-METALS AND THEIR COMPOUNDS

Which metal is used as a catalyst in the Haber process for the manufacture of ammonia?

2017 Winter

2

Theory

CH1 - STATES OF MATTER

The diagrams show the arrangement of particles in three different physical states of substance X.Which statement about the physical states of substanc...

2011 Summer

3

Theory

CH2 - SEPARATING SUBSTANCES

An aqueous solution is coloured. Which method of separation would show that the solution contains ions of different colours? A chromatography B crysta...

2011 Summer

1

Theory

CH2 - SEPARATING SUBSTANCES

The table gives the solubility of four substances in ethanol and in water.A mixture containing all four substances is added to ethanol, stirred and fi...

2011 Summer

1

Theory

CH4 - ATOMS COMBINING

Which two elements react together to form an ionic compound? [Table_1] A. W and X B. X and Y C. Y and Z D. Z and W

2011 Summer

1

Theory

CH3 - ATOMS AND ELEMENTS

The diagram shows part of the Periodic Table.Which element is correctly matched with its electronic structure?[Table_1: electronic structure]A: 2,8,1B...

2011 Summer

1

Theory

CH4 - ATOMS COMBINING

In the diagrams, circles of different sizes represent atoms of different elements.Which diagram represents hydrogen chloride gas?Options: A, B, C, D

2011 Summer

2

Theory

CH4 - ATOMS COMBINING

The nucleon number and proton number of the lithium atom are shown by the symbol $^7_3\text{Li}$.What is the correct symbol for the lithium ion in lit...

2011 Summer

1

Theory

CH5 - REACTING MASSES AND CHEMICAL EQUATIONS

What is the relative molecular mass ($M_r$) of HNO$_3$? A 5 B 31 C 32 D 63

2011 Summer

2

Theory

CH14 - MAKING USE OF METALS

Electricity from a power station passes through overhead cables to a substation and then to a school where it is used to electrolyse concentrated hydr...

2011 Summer

2

Theory

CH1 - STATES OF MATTER

Which statement about the electrolysis of molten lead(II) bromide is correct? A A colourless gas is seen at the cathode. B A grey metal is seen at...

2011 Summer

2