Skip to content

Course home

Question bank·2.1 Purity and separating mixtures
Sign up

2.1 Purity and separating mixtures

EasyMediumHard
12345678910111213141516171819202122232425262728293031
Question 17

A technician is building a molecular model of a compound with the empirical formula CH2\mathrm{CH_{2}}CH2​.

Which set of atoms could the technician use?

[1]
A

8 carbon atoms and 4 hydrogen atoms

B

2 carbon atoms and 6 hydrogen atoms

C

4 carbon atoms and 10 hydrogen atoms

D

4 carbon atoms and 8 hydrogen atoms

Markscheme

2.1 Purity and separating mixtures Questions

  1. GCSE
  2. /Chemistry
  3. /2.1 Purity and separating mixtures

102 exam-style questions on OCR GCSE Chemistry 2.1 Purity and separating mixtures, covering 2.1.1 Pure substances and melting point data, 2.1.2 Relative formula mass and empirical formula, 2.1.3 Formulations as useful mixtures, 2.1.4 Techniques for separating mixtures, and 2.1.5 Chromatography and Rf values. Each one has a worked solution and a mark scheme showing where the marks go.

More questions