MCQ

CH11 - ACIDS AND BASES

Aqueous sodium hydroxide is added to a solution of a salt. A blue precipitate is formed which does not dissolve in excess.Aluminium foil is added to t...

2009 Summer

MCQ

CH11 - ACIDS AND BASES

The graph shows how the pH of soil in a field changed over time.At which point was the soil neutral?

2009 Summer

MCQ

CH11 - ACIDS AND BASES

An element E is burned in air. A white solid oxide is formed. The oxide is tested with damp red litmus paper. The paper turns blue. What is element E?

2009 Summer

MCQ

CH11 - ACIDS AND BASES

Some reactions of a substance, R, are shown in the diagram. What type of substance is R?

2009 Summer

MCQ

CH11 - ACIDS AND BASES

Substance K reacts with sodium carbonate to form a gas. The gas turns limewater cloudy. What is substance K and which process takes place in the react...

2009 Summer

MCQ

CH11 - ACIDS AND BASES

Some reactions of a substance, R, are shown in the diagram. What type of substance is R?

2009 Summer

MCQ

CH11 - ACIDS AND BASES

An element E is burned in air. A white solid oxide is formed.The oxide is tested with damp red litmus paper. The paper turns blue.What is element E?

2009 Summer

MCQ

CH11 - ACIDS AND BASES

The graph shows how the pH of soil in a field changed over time. At which point was the soil neutral? [Graph of pH over time: points A, B, C, D, with ...

2009 Summer

MCQ

CH11 - ACIDS AND BASES

Aqueous sodium hydroxide is added to a solution of a salt. A blue precipitate is formed which does not dissolve in excess.Aluminium foil is added to t...

2009 Summer

MCQ

CH11 - ACIDS AND BASES

Substance K reacts with sodium carbonate to form a gas.The gas turns limewater cloudy.What is substance K and which process takes place in the reactio...

2009 Summer

Theory

CH4 - ATOMS COMBINING

(a) A list of compounds is shown.aluminium oxidecalcium bromidecalcium oxideethaneethenehydrogen chloridemethanenitrogen dioxidepotassium iodidepotass...

2020 Spring

Theory

CH14 - MAKING USE OF METALS

Iron is extracted by heating a mixture of coke (carbon), limestone and iron ore in air in a blast furnace.A diagram of the blast furnace is shown.(a) ...

2020 Spring

Theory

CH15 - AIR AND WATER

Water is essential for many industrial processes.(a) State one use of water in industry..................................................................

2020 Spring

Theory

CH17 - ORGANIC CHEMISTRY

Angelic acid and ethanoic acid are both carboxylic acids.The structure of angelic acid is shown.(a) (i) On the structure of angelic acid, draw a circl...

2020 Spring

Theory

CH12 - THE PERIODIC TABLE

The table shows some properties of four metals in Group I of the Periodic Table.[Table_1](a) Complete the table to estimate:• the melting point of r...

2020 Spring

Theory

CH11 - ACIDS AND BASES

This question is about the reactions of magnesium with nitric acid.(a) The equation for the reaction of magnesium with concentrated nitric acid is sho...

2020 Spring

Theory

CH1 - STATES OF MATTER

(a) The electrolysis of dilute sulfuric acid produces gases at both electrodes.(i) The incomplete apparatus is shown.Complete the diagram by:- labelli...

2020 Spring

Theory

CH4 - ATOMS COMBINING

(a) The structures of four substances C, D, E and F, are shown.(i) Which one of these substances, C, D, E or F, is a gas at room temperature?............

2020 Spring

MCQ

CH1 - STATES OF MATTER

Nitrogen is heated in a balloon, which expands slightly. Which statements about the molecules of nitrogen are correct? 1. They move further apart. 2...

2020 Summer

MCQ

CH1 - STATES OF MATTER

Which piece of apparatus should be used to measure exactly 21.4 \text{ cm}^3 of water?

2020 Summer