Subject :NSO Class : Class 8
Paint applied to an iron surface prevents the iron from rusting. Which ONE of the following provides the best reason?
AIt prevents nitrogen from coming in contact with the iron
BIt reacts chemically with the iron
CIt prevents carbon dioxide from coming in contact with the iron
DIt prevents oxygen and moisture from coming in contact with the iron
Ans 1:
Class : Class 8
It prevents oxygen and moisture from coming in cantact with air