DP Chemistry (last assessment 2024)

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Question 22M.2.sl.TZ1.b

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Date May 2022 Marks available [Maximum mark: 1] Reference code 22M.2.sl.TZ1.b
Level sl Paper 2 Time zone TZ1
Command term Draw Question number b Adapted from N/A
b.
[Maximum mark: 1]
22M.2.sl.TZ1.b

Ammonia, NH3, is industrially important for the manufacture of fertilizers, explosives and plastics.

Draw the Lewis (electron dot) structure of the ammonia molecule.

[1]

Markscheme

 

Accept lines or dots or crosses for electrons, or a mixture of these

 

Examiners report

Even more candidates could draw the correct Lewis structure of ammonia, with omission of the lone pair being the most common error.

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