MCQ

CH15 - AIR AND WATER

The diagram shows some uses of water in the home. For which uses is it important for the water to have been treated?

2017 Summer

3

MCQ

CH15 - AIR AND WATER

The diagram shows an experiment to investigate how paint affects the rusting of iron. What happens to the water level in tubes P and Q?

2016 Summer

2

MCQ

CH15 - AIR AND WATER

A new planet has been discovered and its atmosphere has been analysed. The table shows the composition of its atmosphere. [Table_1] Which gases a...

2016 Summer

3

MCQ

CH15 - AIR AND WATER

Which chemical reaction decreases pollution in the air?

2017 Summer

2

MCQ

CH15 - AIR AND WATER

Air is a mixture of gases.Which gas is present in the largest amount?

2016 Winter

3

MCQ

CH15 - AIR AND WATER

Which information about carbon dioxide and methane is correct? [Table_1]

2016 Winter

2

MCQ

CH15 - AIR AND WATER

Boats made from steel can be protected from rusting by attaching blocks of a more reactive metal to the hull of the boat. Which statement is correct?

2016 Winter

1

MCQ

CH15 - AIR AND WATER

Which process removes carbon dioxide from the atmosphere?

2017 Winter

2

MCQ

CH15 - AIR AND WATER

The diagram shows some uses of water in the home. For which uses is it important for the water to have been treated?

2017 Summer

2

MCQ

CH15 - AIR AND WATER

The diagram shows an experiment to investigate how paint affects the rusting of iron. What happens to the water level in tubes P and Q?

2016 Summer

2

MCQ

CH1 - STATES OF MATTER

Small crystals of purple $\text{KMnO}_4$ $(M_r = 158)$ and orange $\text{K}_2\text{Cr}_2\text{O}_7$ $(M_r = 294)$ were placed at the centres of separa...

2017 Summer

2

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 c...

2017 Summer

2

MCQ

CH2 - SEPARATING SUBSTANCES

A chromatogram obtained from the chromatography of four substances is shown. Which substance has an $R_f$ value of 0.6?

2017 Summer

2

MCQ

CH3 - ATOMS AND ELEMENTS

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

2017 Summer

1

MCQ

CH3 - ATOMS AND ELEMENTS

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

2017 Summer

2

MCQ

CH4 - ATOMS COMBINING

Which statement about metals is not correct?

2017 Summer

1

MCQ

CH4 - ATOMS COMBINING

Aluminium reacts with fluorine.$xAl(s) + yF_2(g) \rightarrow zAlF_3(s)$Which values of $x$, $y$ and $z$ balance the equation?[Table_1]

2017 Summer

2

MCQ

CH4 - ATOMS COMBINING

Carbon monoxide burns in oxygen to produce carbon dioxide. $$2\text{CO}(g) + \text{O}_2(g) \rightarrow 2\text{CO}_2(g)$$ Which mass of carbon dioxide...

2017 Summer

1

MCQ

CH1 - STATES OF MATTER

Which statement about electrolysis is correct?

2017 Summer

2

MCQ

CH1 - STATES OF MATTER

The reactivity series for a number of different metals is shown.[Image_1: Reactivity series and diagram]The diagram shows different metal strips dippe...

2017 Summer

3