Testing for ions

Daisy Fletcher-Cooney
Quiz by Daisy Fletcher-Cooney, updated more than 1 year ago
Daisy Fletcher-Cooney
Created by Daisy Fletcher-Cooney almost 7 years ago
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Description

Unit 3

Resource summary

Question 1

Question
What group are the alkali metals in?
Answer
  • Group 1
  • Group 7
  • Group 3
  • Group 4

Question 2

Question
What colour flame does lithium produce?
Answer
  • Orange
  • Yellow
  • Lilac
  • Red

Question 3

Question
Sodium produces an orange flame
Answer
  • True
  • False

Question 4

Question
What colour does potassium produce?
Answer
  • Blue
  • Lilac
  • Red
  • Yellow
  • Green

Question 5

Question
What colour flame does calcium produce?
Answer
  • Brick red
  • lilac
  • red
  • orange

Question 6

Question
Ammonium ions can be identified in a solution by adding dilute sodium hydroxide solution and gently heating. If ammonium ions are present, they will be converted to ammonia gas. Ammonia has a characteristic choking smell. It also turns damp red litmus paper or damp universal indicator paper blue.
Answer
  • True
  • False

Question 7

Question
When NaOH is added to Fe2+, what colour is the precipitate?
Answer
  • Orange-brown
  • green
  • blue

Question 8

Question
When NaOH is added to Fe3+, what colour is the precipitate?
Answer
  • Green
  • Orange-brown
  • Blue

Question 9

Question
When NaOH is added to Cu2+, the precipitate is green
Answer
  • True
  • False

Question 10

Question
When dilute NaOH is added to Zn2+, a white precipitate forms
Answer
  • True
  • False
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