Molecules and covalent bonds — Paper 1 · IGCSE Physical Science 0652

5 A model of a molecule is shown. Which molecule could this be? A ammonia B hydrogen chloride C methane D water

1 marks

Answer: D

This question in 0652/11 Oct/Nov 2005

4 The dot-and-cross diagram shows the outer shell electrons in a molecule with a single covalent bond. key e electron } X_ electron ‘ * nucleus No What could this molecule be? H Ch HCl 0 ONO DW > ~ eK ~*~ {Kw K& Ke OM

1 marks

Answer: C

This question in 0652/11 Oct/Nov 2006

5 Which formula represents a molecule that contains 3 atoms? A HBr B MgO C NH3 D SCl2

1 marks

Answer: D

This question in 0652/11 Oct/Nov 2007

5 The diagrams show the bonding in three covalent molecules. 1 2 3 Which of these molecules combine to form ammonia? A 1 and 2 only B 1 and 3 only C 2 and 3 only D 1, 2 and 3

1 marks

Answer: B

This question in 0652/11 Oct/Nov 2008

3 The following statements are about covalent bonding. Covalent bonds are formed by the ……1…… of electrons. Covalent substances have ……2…… electrical conductivity. Which words correctly complete gaps 1 and 2? 1 2 A sharing high B sharing low C transfer high D transfer low

1 marks

Answer: B

This question in 0652/11 Oct/Nov 2011

10 The diagram shows an outline of part of the Periodic Table. W X Y Z Which two elements could form a covalent compound? A W and X B W and Y C X and Y D X and Z

1 marks

Answer: A

This question in 0652/11 Oct/Nov 2011

1 The following statements are about covalent bonding. Covalent bonds are formed by the ……1…… of electrons. Covalent substances have ……2…… electrical conductivity. Which words correctly complete gaps 1 and 2? 1 2 A sharing high B sharing low C transfer high D transfer low

1 marks

Answer: B

This question in 0652/12 Oct/Nov 2011

10 The diagram shows an outline of part of the Periodic Table. W X Y Z Which two elements could form a covalent compound? A W and X B W and Y C X and Y D X and Z

1 marks

Answer: A

This question in 0652/12 Oct/Nov 2011

3 The diagram shows the bonding electrons in a covalent molecule. Which molecule is shown? A chlorine B hydrogen chloride C methane D water

1 marks

Answer: C

This question in 0652/11 Oct/Nov 2013

3 The diagram shows the bonding electrons in a covalent molecule. Which molecule is shown? A chlorine B hydrogen chloride C methane D water

1 marks

Answer: C

This question in 0652/12 Oct/Nov 2013

4 The following statements are about covalent bonding. Covalent bonds are formed by the ……1…… of electrons. Covalent substances have ……2…… electrical conductivity. Which words correctly complete gaps 1 and 2? 1 2 A sharing high B sharing low C transfer high D transfer low

1 marks

Answer: B

This question in 0652/11 Oct/Nov 2015

4 The following statements are about covalent bonding. Covalent bonds are formed by the ……1…… of electrons. Covalent substances have ……2…… electrical conductivity. Which words correctly complete gaps 1 and 2? 1 2 A sharing high B sharing low C transfer high D transfer low

1 marks

Answer: B

This question in 0652/12 Oct/Nov 2015

5 Which statement about the structure of diamond is correct? A Each atom has three covalent bonds. B Electrons in the structure are free to move. C It is made up of layers of atoms. D It is tetrahedral.

1 marks

Answer: D

This question in 0652/12 Oct/Nov 2016

4 Compound J contains the elements Y and Z. The diagram shows the outer-shell electron arrangement of compound J. Y Y Z Y Which type of compound is J? A alloy B covalent C ionic D macromolecule

1 marks

Answer: B

This question in 0652/11 Oct/Nov 2018

4 Compound J contains the elements Y and Z. The diagram shows the outer-shell electron arrangement of compound J. Y Y Z Y Which type of compound is J? A alloy B covalent C ionic D macromolecule

1 marks

Answer: B

This question in 0652/12 Oct/Nov 2018

4 Which row describes properties of a simple covalent compound? electrical volatility conductivity A good high B good low C poor high D poor low

1 marks

Answer: C

This question in 0652/11 Oct/Nov 2019

4 Some properties of X and Y are shown. property X Y volatility non-volatile highly volatile solubility in water soluble insoluble electrical conductivity when molten good poor Which row describes the bonding in X and Y? X Y A covalent covalent B covalent ionic C ionic covalent D ionic ionic

1 marks

Answer: C

This question in 0652/12 Oct/Nov 2019

5 Water, H2O, is a covalent molecule made up of hydrogen and oxygen. Which dot-and-cross diagram represents a water molecule? A B C D O O O O H H H H H H H H

1 marks

Answer: D

This question in 0652/11 Oct/Nov 2023

5 Water, H2O, is a covalent molecule made up of hydrogen and oxygen. Which dot-and-cross diagram represents a water molecule? A B C D O O O O H H H H H H H H

1 marks

Answer: D

This question in 0652/12 Oct/Nov 2023

5 Some properties of X and Y are shown. property X Y volatility non-volatile highly volatile solubility in water soluble insoluble electrical conductivity when molten good poor Which row describes the bonding in X and Y? X Y A covalent covalent B covalent ionic C ionic covalent D ionic ionic

1 marks

Answer: C

This question in 0652/11 Oct/Nov 2024

6 Which row shows the formulae of carbon dioxide and chlorine? carbon dioxide chlorine A CO Cl 2 B CO Cl C CO2 Cl 2 D CO2 Cl

1 marks

Answer: C

This question in 0652/11 Oct/Nov 2024