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 diagram shows a cup of tea. Which row describes the water particles in the air above the cup compared with the water particles in the cup?[Table_1...

2013 Summer

1

Theory

CH11 - ACIDS AND BASES

Crystals of sodium chloride were prepared by the following method.1 25.0cm3 of dilute hydrochloric acid was accurately measured into a conical flask....

2013 Summer

2

Theory

CH11 - ACIDS AND BASES

Lead iodide is insoluble in water.Lead iodide is made by adding aqueous lead nitrate to aqueous potassium iodide.Which pieces of apparatus are needed ...

2013 Summer

2

Theory

CH3 - ATOMS AND ELEMENTS

Element X is represented by $^{27}_{13}X$.Which statement about element X is correct?A. An atom of X contains 13 protons and 13 neutrons.B. An atom of...

2013 Summer

1

Theory

CH12 - THE PERIODIC TABLE

The positions of four elements are shown on the outline of the Periodic Table.Which element forms a coloured oxide?

2013 Summer

2

Theory

CH4 - ATOMS COMBINING

For which substance is the type of bonding \textbf{not} correct?[Table_1]The table contains the following:\begin{center}\begin{tabular}{|c|c|c|c|}\hli...

2013 Summer

2

Theory

CH4 - ATOMS COMBINING

Element X has six electrons in its outer shell. How could the element react? A by gaining two electrons to form a positive ion B by losing six elec...

2013 Summer

1

Theory

CH1 - STATES OF MATTER

The diagram shows an incomplete circuit. Which substance causes the lamp to light when added to the glass tube? A. aqueous sodium chloride B. aqu...

2013 Summer

3

Theory

CH5 - REACTING MASSES AND CHEMICAL EQUATIONS

A compound with the formula XF$_2$ has a relative formula mass of 78.What is element X?A) argonB) calciumC) neonD) zirconium

2013 Summer

1

Theory

CH13 - THE BEHAVIOR OF METALS

What is the balanced chemical equation for the reaction between calcium and water?A. $\text{Ca} + \text{H}_2\text{O} \rightarrow \text{CaOH} + \text{H...

2013 Summer

2