Posiitve ions - Metal Hydroxides (Edexcel GCSE Chemistry): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
Which reagent is added to a solution to identify metal ions by forming precipitates?
Which reagent is added to a solution to identify metal ions by forming precipitates?
Sodium hydroxide
What typically forms when metal ions react with sodium hydroxide?
What typically forms when metal ions react with sodium hydroxide?
Insoluble solid precipitates
What colour precipitate forms when sodium hydroxide is added to calcium ions ()?
What colour precipitate forms when sodium hydroxide is added to calcium ions ()?
White
What colour is the magnesium hydroxide precipitate formed with sodium hydroxide?
What colour is the magnesium hydroxide precipitate formed with sodium hydroxide?
White
What colour precipitate does aluminium hydroxide initially form?
What colour precipitate does aluminium hydroxide initially form?
White
What happens to aluminium hydroxide when excess sodium hydroxide is added?
What happens to aluminium hydroxide when excess sodium hydroxide is added?
It dissolves forming a colourless solution
Which metal hydroxide dissolves in excess sodium hydroxide?
Which metal hydroxide dissolves in excess sodium hydroxide?
Aluminium hydroxide
What colour precipitate forms when copper ions () react with sodium hydroxide?
What colour precipitate forms when copper ions () react with sodium hydroxide?
Blue
What colour precipitate does iron(II) () form with sodium hydroxide?
What colour precipitate does iron(II) () form with sodium hydroxide?
Green
What colour precipitate does iron(III) () form with sodium hydroxide?
What colour precipitate does iron(III) () form with sodium hydroxide?
Brown
Which metal ions produce coloured precipitates when reacted with sodium hydroxide?
Which metal ions produce coloured precipitates when reacted with sodium hydroxide?
Copper and iron
How are metal ions identified using the sodium hydroxide test?
How are metal ions identified using the sodium hydroxide test?
By the colour of precipitate formed