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3.3 Types of chemical reactions

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Question 15
F

A student adds universal indicator to four solutions, W, X, Y and Z.

The table shows the colour of each solution.

SolutionColour with universal indicator
Wpurple
Xgreen
Yred
Zorange

Which solution is the most alkaline?

[1]
A

W

B

X

C

Y

D

Z

Markscheme

3.3 Types of chemical reactions Questions

  1. GCSE
  2. /Chemistry
  3. /3.3 Types of chemical reactions

112 exam-style questions on OCR GCSE Chemistry 3.3 Types of chemical reactions, covering 3.3.1 Oxidation and reduction in terms of oxygen, 3.3.2 Acids, alkalis and neutralisation, 3.3.3 The pH scale and measuring pH, 3.3.4 Oxidation and reduction in terms of electrons, 3.3.5 Dilute and concentrated, weak and strong acids, and 3.3.6 Hydrogen ion concentration and pH. Each one has a worked solution and a mark scheme showing where the marks go.

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