MCQ

CH4 - ATOMS COMBINING

Graphite and diamond are both forms of the element carbon.Which row shows the number of other carbon atoms that each carbon atom is covalently bonded ...

2017 Summer

1

MCQ

CH4 - ATOMS COMBINING

The table shows the electronic structure of four atoms.[Table_1]Which two atoms combine to form a covalent compound?

2016 Summer

2

MCQ

CH4 - ATOMS COMBINING

Which statement describes metallic bonding?

2017 Summer

1

MCQ

CH4 - ATOMS COMBINING

Which statement describes the attractive forces between molecules (intermolecular forces)?

2016 Summer

2

MCQ

CH4 - ATOMS COMBINING

Metals consist of a lattice of positive ions in a 'sea of electrons'.Why is aluminium malleable?

2016 Summer

2

MCQ

CH4 - ATOMS COMBINING

In which ionic compound do the metal ion and the non-metal ion have the same electronic structure?

2016 Winter

2

MCQ

CH4 - ATOMS COMBINING

The structure of methanal is shown. Which diagram shows the arrangement of outer shell electrons in a molecule of methanal?

2016 Winter

1

MCQ

CH4 - ATOMS COMBINING

Which dot-and-cross diagram shows the outer shell electron arrangement in a molecule of carbon dioxide?

2017 Winter

2

MCQ

CH4 - ATOMS COMBINING

Iron is a metal. Its structure consists of a giant lattice of positive ions in a 'sea of electrons'.Which statements about solid iron are correct?1. I...

2016 Winter

2

MCQ

CH4 - ATOMS COMBINING

The table shows the electronic structure of four atoms.[Table_1] Which two atoms combine to form a covalent compound?

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

1

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

2