7th Class
Science
Physical and Chemical Changes
Question Bank
Physical and Chemical Changes
question_answer
Surface of a reactive metal may be attacked by air, water or other substances causing corrosion. Corrosion of iron is called rusting. The product formed by rusting is:
A)rust
B)a brown solid
C)Both of these
D)None of these
Correct Answer:
C
Solution :
The brown product is called rust. It is an oxide of iron.