MEDIUM
Upper Secondary: IGCSE
IMPORTANT
Earn 100

Describe the gas jar and explain what it is used for.

Important Questions on In the Lab

EASY
Upper Secondary: IGCSE
IMPORTANT
Complete Chemistry for Cambridge IGCSE® Second Edition>Chapter 19 - In the Lab>Q>Q 1
Do you think this counts as a hypothesis? I am late for class again.
EASY
Upper Secondary: IGCSE
IMPORTANT
Complete Chemistry for Cambridge IGCSE® Second Edition>Chapter 19 - In the Lab>Q>Q 1
Do you think this counts as a hypothesis? If I add more yeast, the fermentation may go faster.
EASY
Upper Secondary: IGCSE
IMPORTANT
Complete Chemistry for Cambridge IGCSE® Second Edition>Chapter 19 - In the Lab>Q>Q 1
Do you think this counts as a hypothesis? December follows November.
MEDIUM
Upper Secondary: IGCSE
IMPORTANT
Complete Chemistry for Cambridge IGCSE® Second Edition>Chapter 19 - In the Lab>Q>Q 1
Do you think this counts as a hypothesis? The rate of photosynthesis may change with temperature.
MEDIUM
Upper Secondary: IGCSE
IMPORTANT
Complete Chemistry for Cambridge IGCSE® Second Edition>Chapter 19 - In the Lab>Checkup on Chapter 19>Q □
Describe the condenser and explain what it is used for.
MEDIUM
Upper Secondary: IGCSE
IMPORTANT
Complete Chemistry for Cambridge IGCSE® Second Edition>Chapter 19 - In the Lab>Checkup on Chapter 19>Q □
Describe the procedure of paper chromatography.
EASY
Upper Secondary: IGCSE
IMPORTANT
Complete Chemistry for Cambridge IGCSE® Second Edition>Chapter 19 - In the Lab>Checkup on Chapter 19>Q 5

Two solutions W and Y are tested with universal indicator paper.

Solution W: the indicator paper turns red
Solution Y: the indicator paper turns orange

Which type of solution is Y?

MEDIUM
Upper Secondary: IGCSE
IMPORTANT
Complete Chemistry for Cambridge IGCSE® Second Edition>Chapter 19 - In the Lab>Checkup on Chapter 19>Q 5

Two solutions W and Y are tested with universal indicator paper.

Solution W: the indicator paper turns red
Solution Y: the indicator paper turns orange

A few drops of barium nitrate solution are added to a solution of W. A white precipitate forms. Identify solution W.