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2.1 Purity and separating mixtures

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Question 8
F

A headache tablet contains a painkiller, a filler, a binder to hold the tablet together and a coating that makes the tablet easier to swallow.

Why is the tablet described as a formulation?

[1]
A

The substances in the tablet react together to make one new compound.

B

The tablet contains only one active substance, so the tablet is pure.

C

The substances are mixed together in whatever amounts are available.

D

Each substance is added in a measured amount for a particular purpose.

Markscheme

2.1 Purity and separating mixtures Questions

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

51 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.

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