EASY
9th ICSE
IMPORTANT
Earn 100
Explain one method of removing permanent hardness.
Important Questions on Specimen Paper 2 (Unsolved) Paper 2 (Chemistry)
EASY
9th ICSE
IMPORTANT
Complete the table by writing the following as basic and acidic radicals and then their formulae.
| Name | Basic radical | Acidic radical | Formula |
| Magnesium hydrogen sulphate | |||
| Aluminium sulphate | |||
| Ammonium phosphate |
EASY
9th ICSE
IMPORTANT
State the cause of acid rain and mention its impact.
MEDIUM
9th ICSE
IMPORTANT
Explain why fused or concentrated is used in a desiccator.
EASY
9th ICSE
IMPORTANT
Explain why conc. sulphuric acid should be stoppered?
EASY
9th ICSE
IMPORTANT
Write a balanced equation for the following reaction:
Water reacted with sodium
MEDIUM
9th ICSE
IMPORTANT
Write correctly balanced equation for the following: When steam is passed over red-hot iron'.
EASY
9th ICSE
IMPORTANT
Write a balanced chemical equation for the following reaction:
Ammonium dichromate is heated
EASY
9th ICSE
IMPORTANT
Write a balanced chemical equation for the following reaction:
Lead reacts with hot and concentrated caustic soda.
