23 – Preparing & Investigating Ethene (LC 2027) (Leaving Cert Chemistry): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What type of reaction is used to prepare ethene from ethanol?
What type of reaction is used to prepare ethene from ethanol?
Dehydration
Which substance acts as a catalyst when preparing ethene from ethanol?
Which substance acts as a catalyst when preparing ethene from ethanol?
Aluminium oxide
Why is glass wool soaked in ethanol used in the preparation of ethene?
Why is glass wool soaked in ethanol used in the preparation of ethene?
To distribute heat evenly
Why is ethene gas collected over water?
Why is ethene gas collected over water?
Ethene is insoluble in water
What is a key safety rule when preparing ethene?
What is a key safety rule when preparing ethene?
No flame near delivery tube end
What is the smell of ethene gas?
What is the smell of ethene gas?
Sweet
What happens when bromine water is added to ethene?
What happens when bromine water is added to ethene?
Orange/brown colour disappears rapidly
What is observed when acidified is added to ethene?
What is observed when acidified is added to ethene?
Purple changes to colourless
Why does ethene react with bromine water?
Why does ethene react with bromine water?
It has a C=C double bond
What type of flame does ethene produce when it burns?
What type of flame does ethene produce when it burns?
Bright yellow
What happens to limewater when ethene burns in air?
What happens to limewater when ethene burns in air?
Turns milky
What is the role of in ethene preparation?
What is the role of in ethene preparation?
Catalyst that speeds up reaction
