MCQ

CH9 - ENERGY CHANGES AND REVERSIBLE REACTIONS

Three processes are listed. burning methane in air radioactive decay of $^{235}U$ reacting hydrogen with oxygen. Which statements about these proc...

2011 Summer

MCQ

CH9 - ENERGY CHANGES AND REVERSIBLE REACTIONS

Solutions of two chemicals are mixed.A reaction occurs and the temperature change is measured.Which statement is correct?

2014 Summer

3

MCQ

CH9 - ENERGY CHANGES AND REVERSIBLE REACTIONS

Statement 1 Hydrogen is used as a fuel.Statement 2 When hydrogen burns in the air to form water, heat energy is produced. Which is correct?

2013 Summer

1

MCQ

CH9 - ENERGY CHANGES AND REVERSIBLE REACTIONS

The equation for the effect of heat on hydrated sodium carbonate is as shown.$$\text{Na}_2\text{CO}_3 \cdot 10\text{H}_2\text{O}(s) \rightleftharpoons...

2011 Summer

2

MCQ

CH9 - ENERGY CHANGES AND REVERSIBLE REACTIONS

Power stations produce electrical energy from different fuels. Which fuel causes least pollution to the atmosphere?

2014 Summer

2

MCQ

CH9 - ENERGY CHANGES AND REVERSIBLE REACTIONS

Which substance does not require oxygen in order to produce energy?

2013 Summer

1

MCQ

CH9 - ENERGY CHANGES AND REVERSIBLE REACTIONS

The diagram shows the reaction between zinc oxide and dilute hydrochloric acid.Which terms describe the reaction?

2012 Summer

1

MCQ

CH9 - ENERGY CHANGES AND REVERSIBLE REACTIONS

The diagram shows some properties that substances may have.To which labelled part of the diagram does $^{235}\text{U}$ belong?

2009 Summer

1

MCQ

CH9 - ENERGY CHANGES AND REVERSIBLE REACTIONS

Butane, ethanol and hydrogen are fuels.Which substances produce both carbon dioxide and water when used as a fuel?[Table_1]

2011 Summer

1

MCQ

CH9 - ENERGY CHANGES AND REVERSIBLE REACTIONS

Which diagram shows a process in which an endothermic change is taking place?

2009 Summer

2

MCQ

CH1 - STATES OF MATTER

The diagram shows some changes of state.Which words describe the changes of state, P, Q, R and S?

2017 Summer

2

MCQ

CH2 - SEPARATING SUBSTANCES

The diagram shows part of a thermometer. What is the reading on the thermometer?

2017 Summer

1

MCQ

CH2 - SEPARATING SUBSTANCES

Pure water has a boiling point of 100 °C and a freezing point of 0 °C.What is the boiling point and freezing point of a sample of aqueous sodium chl...

2017 Summer

1

MCQ

CH2 - SEPARATING SUBSTANCES

Pure copper(II) sulfate crystals can be made by adding copper(II) oxide to hot dilute sulfuric acid. The copper(II) oxide is added until it ......1......

2017 Summer

2

MCQ

CH3 - ATOMS AND ELEMENTS

Which part of an atom has a relative mass of 1 and a relative charge of 0?

2017 Summer

3

MCQ

CH4 - ATOMS COMBINING

Which molecule contains exactly two single covalent bonds?

2017 Summer

2

MCQ

CH4 - ATOMS COMBINING

Sodium reacts with chlorine to form sodium chloride. Which statements describe what happens to the sodium atoms in this reaction? 1. Sodium atoms fo...

2017 Summer

3

MCQ

CH4 - ATOMS COMBINING

Diamond is extremely hard and does not conduct electricity. Which statement explains these properties?

2017 Summer

2

MCQ

CH5 - REACTING MASSES AND CHEMICAL EQUATIONS

What is the relative formula mass of ammonium nitrate, NH$_4$NO$_3$?

2017 Summer

2

MCQ

CH1 - STATES OF MATTER

Concentrated aqueous sodium chloride is electrolysed. What is the main product formed at the positive electrode (anode)?

2017 Summer

2