MCQ

CH14 - MAKING USE OF METALS

Which process is involved in the extraction of zinc from zinc blende?

2017 Summer

1

MCQ

CH14 - MAKING USE OF METALS

Stainless steel is an alloy of iron and other metals. It is strong and does not rust but it costs much more than normal steel.What is not made from st...

2017 Summer

4

MCQ

CH14 - MAKING USE OF METALS

Iron from a blast furnace is treated with oxygen and with calcium oxide to make steel.Which substances in the iron are removed?[Table_1]

2016 Summer

3

MCQ

CH14 - MAKING USE OF METALS

Why is cryolite used during the extraction of aluminium by electrolysis?

2016 Summer

3

MCQ

CH14 - MAKING USE OF METALS

Why is argon gas used to fill electric lamps?

2017 Winter

1

MCQ

CH14 - MAKING USE OF METALS

Impurities in iron obtained from the blast furnace include carbon, phosphorus, and silicon. Which impurities are removed from the molten iron as gase...

2016 Winter

1

MCQ

CH14 - MAKING USE OF METALS

Which statement about the industrial extraction of aluminium from aluminium oxide is correct?

2016 Winter

2

MCQ

CH14 - MAKING USE OF METALS

The alloy brass is a mixture of copper and another metal. Brass is used to make the pins of electrical plugs. Copper is used to make electrical wiring...

2016 Winter

2

MCQ

CH14 - MAKING USE OF METALS

Stainless steel is an alloy of iron and other metals. It is strong and does not rust but it costs much more than normal steel. What is not made from s...

2017 Summer

3

MCQ

CH14 - MAKING USE OF METALS

Aluminium is extracted by electrolysis of a mixture of aluminium oxide and cryolite. Which statement is not correct?

2016 Summer

2

Theory

CH3 - ATOMS AND ELEMENTS

The table shows the numbers of protons, neutrons and electrons in particles A to I.[Table_1]Answer the following questions about particles A to I. Eac...

2021 Spring

1

Theory

CH15 - AIR AND WATER

The elements shown are gases at room temperature and pressure.hydrogennitrogenoxygenchlorine(a) State which one of these gases is green..................

2021 Spring

1

Theory

CH16 - SOME NON-METALS AND THEIR COMPOUNDS

This question is about ammonia.(a) Nitrogen reacts with hydrogen to form ammonia in an industrial process.$$N_2(g) + 3H_2(g) \rightleftharpoons 2NH_3(...

2021 Spring

1

Theory

Stoichiometry

A student wanted to make some zinc chloride crystals. The student followed the procedure shown. step 1 Add excess zinc powder to dilute hydrochlor...

2021 Spring

2

Theory

Plastics

The table shows the names or structures of organic compounds P to U. (a) Give the letters of the organic compounds, P to U, that are unsaturated hy...

2021 Spring

1

Theory

CH18 - POLYMERS

Polymers are large molecules built up from small molecules.(a) State the name given to the small molecules from which polymers are made..................

2021 Spring

2

MCQ

CH1 - STATES OF MATTER

A gas is released at point P in the apparatus shown. Which gas turns the damp universal indicator paper red most quickly?

2021 Summer

2

MCQ

CH2 - SEPARATING SUBSTANCES

A mixture is separated using the apparatus shown. What is the mixture?

2021 Summer

2

MCQ

CH2 - SEPARATING SUBSTANCES

Which statement about paper chromatography is correct?

2021 Summer

2

MCQ

CH3 - ATOMS AND ELEMENTS

Element X has 7 protons. Element Y has 8 more protons than X. Which statement about element Y is correct?

2021 Summer

1