Teaching BPSC बिहार माध्यमिक TGT (9 to 10) शिक्षक भर्ती 4.0 Mock Test General Science Chemistry Chemical Bond and Molecular Structure
Which of the following causes the rusting of iron?
a. Oxidation
b. Reduction
c. Chemical reaction with oxygen
d. Chemical reaction with CO2
1
a and c
2
b and c
3
c and d
4
More than one of the above
5
None of the above