DP Chemistry (last assessment 2024)

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Question 20N.1.sl.TZ0.3

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Date November 2020 Marks available [Maximum mark: 1] Reference code 20N.1.sl.TZ0.3
Level sl Paper 1 Time zone TZ0
Command term Determine Question number 3 Adapted from N/A
3.
[Maximum mark: 1]
20N.1.sl.TZ0.3

Which of these molecular formulae are also empirical formulae?

  1.  C2H6O
  2.  C2H4O2
  3.  C5H12

A.  I and II only

B.  I and III only

C.  II and III only

D.  I, II and III

[1]

Markscheme

B

Examiners report

One of the best answered questions on paper 1. Very few of the candidates struggled with distinguishing molecular and empirical formula.

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