Group 7: The Halogens (AQA GCSE Chemistry): Quizzes
📚Quizzes
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13 questions from this quiz
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Practise the questions
13 questions from this quiz
What is the colour and state of chlorine at room temperature?
What is the colour and state of chlorine at room temperature?
Yellow-green gas
What is the colour and state of bromine at room temperature?
What is the colour and state of bromine at room temperature?
Orange-red liquid
What colour vapour does iodine produce?
What colour vapour does iodine produce?
Purple vapour
What happens to reactivity as you move down Group 7?
What happens to reactivity as you move down Group 7?
Reactivity decreases
What happens to melting and boiling points down Group 7?
What happens to melting and boiling points down Group 7?
Both increase
How many electrons do all Group 7 elements have in their outer shell?
How many electrons do all Group 7 elements have in their outer shell?
7 electrons
Why does reactivity decrease down Group 7?
Why does reactivity decrease down Group 7?
Outer electrons further from nucleus
What colour are metal halides (salts) formed from halogens and metals?
What colour are metal halides (salts) formed from halogens and metals?
White solids
Why is chlorine used in drinking water and swimming pools?
Why is chlorine used in drinking water and swimming pools?
To kill bacteria as a disinfectant
What is the main difference between an antiseptic and a disinfectant?
What is the main difference between an antiseptic and a disinfectant?
Disinfectant is 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
What three products form from electrolysis of sodium chloride solution?
What three products form from electrolysis of sodium chloride solution?
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