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Date November 2012 Marks available 1 Reference code 12N.1.sl.TZ0.29
Level SL Paper 1 Time zone TZ0
Command term Question number 29 Adapted from N/A

Question

Some methane gas is burned in a limited supply of oxygen. Which products could form?

I.     C(s)

II.     CO(g)

III.     CO2(g)

 

A.     I and II only

B.     I and III only

C.     II and III only

D.     I, II and III

Markscheme

D

Examiners report

We recognize that this might be a language problem. “Incomplete combustion” is not the same as “burned in a limited supply of oxygen”. Candidates may also have not read “could” correctly. The correct answer was D. This was the “hardest” question on the paper.

Syllabus sections

Core » Topic 10: Organic chemistry » 10.2 Functional group chemistry
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