Chemistry questions for class 7 ICSE please answer all questions as first as possible when answer please inform me.

Asked by jahangirhossain848 | 22nd Oct, 2019, 09:52: PM

Expert Answer:

Ans. 3
Conditions necessary for rusting of iron
i. Presence of air (or oxygen)
ii. Presence of water (or moisture)
 

Answered by Ramandeep | 24th Oct, 2019, 03:42: PM