Teaching BPSC बिहार मध्य विद्यालय (6 to 8) शिक्षक भर्ती 4.0 Mock Test General Science Chemistry Surface Chemistry
During Galvanization, which metal is used for coating iron and steel objects, preventing them from rusting?
1
Zinc
2
Copper
3
Aluminium
4
More than one of the above
5
None of the above