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Question 22

When a small piece of potassium is added to a trough of cold water, a vigorous reaction occurs, producing a lilac flame and an alkaline solution.

State the chemical formulae of the two products of this reaction.

[1]

Group 1 Questions

  1. GCSE
  2. /Chemistry
  3. /Group 1

Practise Edexcel GCSE Chemistry Group 1 with exam-style questions for Foundation and Higher tier. 51 questions, matched to the Edexcel GCSE Chemistry (1CH0) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.

Question bank