MEDIUM
Upper Secondary: IGCSE
IMPORTANT
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How will you test if the gas is carbon dioxide?

Important Questions on In the Lab

MEDIUM
Upper Secondary: IGCSE
IMPORTANT
Complete Chemistry for Cambridge IGCSE® Second Edition>Chapter 19 - In the Lab>Q>Q 1
Write the equation for a positive test reaction of carbon dioxide?
MEDIUM
Upper Secondary: IGCSE
IMPORTANT
Complete Chemistry for Cambridge IGCSE® Second Edition>Chapter 19 - In the Lab>Q>Q 2
Hydrogen cannot be collected by upward displacement of air. Why?
MEDIUM
Upper Secondary: IGCSE
IMPORTANT
Complete Chemistry for Cambridge IGCSE® Second Edition>Chapter 19 - In the Lab>Q>Q 2
Hydrogen burns with a squeaky pop. Write a balanced equation for the reaction that takes place.
MEDIUM
Upper Secondary: IGCSE
IMPORTANT
Complete Chemistry for Cambridge IGCSE® Second Edition>Chapter 19 - In the Lab>Q>Q 3
Name two substances you could use to make ammonia.
EASY
Upper Secondary: IGCSE
IMPORTANT
Complete Chemistry for Cambridge IGCSE® Second Edition>Chapter 19 - In the Lab>Q>Q 3
Ammonia cannot be collected over water. Why not?
MEDIUM
Upper Secondary: IGCSE
IMPORTANT
Complete Chemistry for Cambridge IGCSE® Second Edition>Chapter 19 - In the Lab>Q>Q 3
The test for ammonia is.................?
MEDIUM
Upper Secondary: IGCSE
IMPORTANT
Complete Chemistry for Cambridge IGCSE® Second Edition>Chapter 19 - In the Lab>Q>Q 4
It is not a good idea to rely on smell, to identify a gas. Suggest at least two reasons why?
MEDIUM
Upper Secondary: IGCSE
IMPORTANT
Complete Chemistry for Cambridge IGCSE® Second Edition>Chapter 19 - In the Lab>Q>Q 5
To measure the rate of reaction between magnesium and hydrochloric acid, you will collect the hydrogen that forms. Which is better to use for this: a measuring cylinder over water, or a gas syringe? Give more than one reason.