MCQ

CH7 - REDOX REACTIONS

In which reaction is lead(II) oxide, PbO, oxidised?

2012 Summer

2

MCQ

CH7 - REDOX REACTIONS

In which equation is the underlined substance acting as a reducing agent?

2013 Summer

2

MCQ

CH7 - REDOX REACTIONS

Which equation shows an oxidation reaction?

2014 Summer

2

MCQ

CH7 - REDOX REACTIONS

The reactions shown may occur in the air during a thunderstorm.$\text{N}_2 + \text{O}_2 \rightarrow 2\text{NO}$$2\text{NO} + \text{O}_2 \rightarrow 2\...

2009 Summer

1

MCQ

CH7 - REDOX REACTIONS

Which change is an oxidation?

2012 Winter

2

MCQ

CH7 - REDOX REACTIONS

The equations represent redox reactions. In which equation is the underlined substance acting as a reducing agent?

2009 Winter

2

MCQ

CH7 - REDOX REACTIONS

The equations for two reactions P and Q are given.P   \( 2\text{NaNO}_2 + \text{O}_2 \rightarrow 2\text{NaNO}_3 \)Q   \( 2\text{HgO} \righta...

2014 Winter

1

MCQ

CH7 - REDOX REACTIONS

The reactions shown may occur in the air during a thunder storm. $$N_2 + O_2 \rightarrow 2NO$$ $$2NO + O_2 \rightarrow 2NO_2$$ $$NO + O_3 \rightarr...

2013 Winter

3

MCQ

CH7 - REDOX REACTIONS

The red colour in some pottery glazes may be formed as a result of the reactions shown.$\text{heat}$CuCO$_3$ $\rightarrow$ CuO + CO$_2$CuO + SnO $\rig...

2010 Winter

2

MCQ

CH7 - REDOX REACTIONS

Which equation shows an oxidation reaction?

2014 Summer

1

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