EASY
Upper Secondary: IGCSE
IMPORTANT
Earn 100

Many gases dissolved in the water. Try to give some examples.

Important Questions on Separating Substances

MEDIUM
Upper Secondary: IGCSE
IMPORTANT
Complete Chemistry for Cambridge IGCSE® Second Edition>Chapter 2 - Separating Substances>Q>Q 1
What does a pure substance mean? 
MEDIUM
Upper Secondary: IGCSE
IMPORTANT
Complete Chemistry for Cambridge IGCSE® Second Edition>Chapter 2 - Separating Substances>Q>Q 2
You mix instant coffee with water, to make up a cup of coffee. Is coffee is an impurity? Explain.
MEDIUM
Upper Secondary: IGCSE
IMPORTANT
Complete Chemistry for Cambridge IGCSE® Second Edition>Chapter 2 - Separating Substances>Q>Q 3
Explain why melting and boiling points can be used as a way to check purity.
MEDIUM
Upper Secondary: IGCSE
IMPORTANT
Complete Chemistry for Cambridge IGCSE® Second Edition>Chapter 2 - Separating Substances>Q>Q 4
Could there be impurities in a gas? Explain.
MEDIUM
Upper Secondary: IGCSE
IMPORTANT
Complete Chemistry for Cambridge IGCSE® Second Edition>Chapter 2 - Separating Substances>Q>Q 1
What does the term 'filtrate' mean? Give an example.
MEDIUM
Upper Secondary: IGCSE
IMPORTANT
Complete Chemistry for Cambridge IGCSE® Second Edition>Chapter 2 - Separating Substances>Q>Q 1
What does the term 'residue' mean? Give an example.
MEDIUM
Upper Secondary: IGCSE
IMPORTANT
Complete Chemistry for Cambridge IGCSE® Second Edition>Chapter 2 - Separating Substances>Q>Q 2
You have a solution of sugar in water. You want to obtain the sugar from it. Explain why filtering will not work. 
MEDIUM
Upper Secondary: IGCSE
IMPORTANT
Complete Chemistry for Cambridge IGCSE® Second Edition>Chapter 2 - Separating Substances>Q>Q 2
You have a solution of sugar in water. You want to obtain the sugar from it. Which method will you use instead ?