2.4 Covalent bonding

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Question 13

F

A student records, for four molecules, the number of shared pairs of electrons and the number of pairs of outer-shell electrons that are not in bonds (non-bonding pairs). One row of the table is incorrect.

Molecule	Shared pairs	Non-bonding pairs in the whole molecule
$HCl\mathrm{HCl}$	1	3
$CO2\mathrm{CO_{2}}$	2	4
$H2O\mathrm{H_{2}O}$	2	2
$O2\mathrm{O_{2}}$	2	4

Which molecule has the incorrect row?

[1]

$HCl\mathrm{HCl}$

$CO2\mathrm{CO_{2}}$

$H2O\mathrm{H_{2}O}$

$O2\mathrm{O_{2}}$

2.4 Covalent bonding

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22

Question 13

F

A student records, for four molecules, the number of shared pairs of electrons and the number of pairs of outer-shell electrons that are not in bonds (non-bonding pairs). One row of the table is incorrect.

Molecule	Shared pairs	Non-bonding pairs in the whole molecule
$HCl\mathrm{HCl}$	1	3
$CO2\mathrm{CO_{2}}$	2	4
$H2O\mathrm{H_{2}O}$	2	2
$O2\mathrm{O_{2}}$	2	4

Which molecule has the incorrect row?

[1]

$HCl\mathrm{HCl}$

$CO2\mathrm{CO_{2}}$

$H2O\mathrm{H_{2}O}$

$O2\mathrm{O_{2}}$

2.4 Covalent bonding

Question 13

Markscheme

2.4 Covalent bonding

Question 13

Markscheme

2.4 Covalent bonding

Question 13

2.4 Covalent bonding Questions

2.4 Covalent bonding

Question 13

2.4 Covalent bonding Questions