Group 7 – Halogens (Edexcel GCSE Chemistry): Quizzes
📚Quizzes
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9 questions from this quiz
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Practise the questions
9 questions from this quiz
What is the appearance of chlorine at room temperature?
What is the appearance of chlorine at room temperature?
Yellow-green gas
What colour is the vapour produced by bromine?
What colour is the vapour produced by bromine?
Orange
What happens to reactivity as you go down Group 7?
What happens to reactivity as you go down Group 7?
It decreases
How many electrons do halogen elements have in their outer shell?
How many electrons do halogen elements have in their outer shell?
7
What colour are the metal halide salts formed when halogens react with metals?
What colour are the metal halide salts formed when halogens react with metals?
White
What percentage of is in domestic bleach?
What percentage of is in domestic bleach?
About 5%
What is the main difference between an antiseptic and a disinfectant?
What is the main difference between an antiseptic and a disinfectant?
Disinfectants are stronger
Why are fluorides added to toothpaste?
Why are fluorides added to toothpaste?
To reduce dental decay
What are silver bromide and silver iodide used for?
What are silver bromide and silver iodide used for?
Photographic film