Question

For rusting of iron, the presence of following is essential:

i) carbon dioxide
ii) nitrogen
iii) oxygen
iv) water vapour
a) i & ii only
b) ii & iii only
c) iii & iv only
d) ii &iv only​

Answer 1

Answer:

option c

Explanation:

that is oxygen and water vapour required

please mark as brainliest

Answer 2

Answer:

answer is c

Rusting is also called oxidising which needs oxygen and humidity for it