Chemistry questions for class 7 ICSE of de nobili school mugma please answer all questions as first as possible when answer please inform me .pls zoom and see the question.

Asked by jahangirhossain848 | 23rd Oct, 2019, 08:43: PM

Expert Answer:

Dear student,
We does not entertain more than one query at a time.
 
Ans. 2

Non metallic oxide react with water and give acids.

CO2 +H2H2CO3

when metallic oxide react with water it gives base.

MgO +H2O → Mg(OH)2

so,non metallic oxides are acidic and metallic oxides are basic in nature.

Answered by Ramandeep | 24th Oct, 2019, 03:55: PM