Potassium Permanganate and Redox Titration 1 (Leaving Cert Chemistry): Quizzes
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Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What is the chemical formula of potassium permanganate?
What is the chemical formula of potassium permanganate?
Why cannot potassium permanganate be used as a primary standard?
Why cannot potassium permanganate be used as a primary standard?
It decomposes in sunlight and heat
What is the stoichiometric ratio of to in acidic solution?
What is the stoichiometric ratio of to in acidic solution?
1:5
What does self-indicating mean for potassium permanganate?
What does self-indicating mean for potassium permanganate?
It acts as its own indicator
What color is the endpoint in a permanganate titration?
What color is the endpoint in a permanganate titration?
Faint pink
Why can iron(II) sulfate crystals not be used as a primary standard?
Why can iron(II) sulfate crystals not be used as a primary standard?
They lose water of crystallisation
What compound is used as a reliable primary standard for iron(II) ions?
What compound is used as a reliable primary standard for iron(II) ions?
Ammonium iron(II) sulfate
Why must permanganate titrations occur in acidic solution?
Why must permanganate titrations occur in acidic solution?
To provide ions for reaction
What product forms when permanganate reacts in neutral or basic solution?
What product forms when permanganate reacts in neutral or basic solution?
Brown precipitate
Where should you read the meniscus when using potassium permanganate?
Where should you read the meniscus when using potassium permanganate?
From the top of the meniscus
What is efflorescence?
What is efflorescence?
Spontaneous loss of water
What is a double salt?
What is a double salt?
Two salts crystallised together