HARD
Upper Secondary: IGCSE
IMPORTANT
Earn 100

What colour change do you see, on adding litmus solution to a solution of phosphorous pentaoxide ?

Important Questions on Acids and Bases

MEDIUM
Upper Secondary: IGCSE
IMPORTANT
Complete Chemistry for Cambridge IGCSE® Second Edition>Chapter 11 - Acids and Bases>Q>Q 5
What is amphoteric oxide ? Give two examples.
HARD
Upper Secondary: IGCSE
IMPORTANT
Complete Chemistry for Cambridge IGCSE® Second Edition>Chapter 11 - Acids and Bases>Q>Q 6
Dinitrogen oxide is a neutral oxide. It is quite soluble in water. How could you prove it as neutral?
EASY
Upper Secondary: IGCSE
IMPORTANT
Complete Chemistry for Cambridge IGCSE® Second Edition>Chapter 11 - Acids and Bases>Q>Q 1
What will you start with, to make Zinc chloride ?
MEDIUM
Upper Secondary: IGCSE
IMPORTANT
Complete Chemistry for Cambridge IGCSE® Second Edition>Chapter 11 - Acids and Bases>Q>Q 2

You would not make lead salts by reacting lead by acids.

Why not ?

MEDIUM
Upper Secondary: IGCSE
IMPORTANT
Complete Chemistry for Cambridge IGCSE® Second Edition>Chapter 11 - Acids and Bases>Q>Q 2

You would not make lead salts by reacting lead by acids.

Suggest a way to make lead nitrate.

MEDIUM
Upper Secondary: IGCSE
IMPORTANT
Complete Chemistry for Cambridge IGCSE® Second Edition>Chapter 11 - Acids and Bases>Q>Q 3

Look at step 2 in the given figure,The zinc was in excess. What does that mean?

Question Image

MEDIUM
Upper Secondary: IGCSE
IMPORTANT
Complete Chemistry for Cambridge IGCSE® Second Edition>Chapter 11 - Acids and Bases>Q>Q 4
What is the purpose of titration?
EASY
Upper Secondary: IGCSE
IMPORTANT
Complete Chemistry for Cambridge IGCSE® Second Edition>Chapter 11 - Acids and Bases>Q>Q 5

For carrying out titration, a burette and pipette are used rather than measuring cylinder. Why ?