Food cans are coated with tin but not with zinc because
A. zinc is costlier than tin
B. zinc has a higher melting point than tin
C. zinc is more reactive than tin
D. tin is more reactive than zinc
Answer: Option C
A. zinc is costlier than tin
B. zinc has a higher melting point than tin
C. zinc is more reactive than tin
D. tin is more reactive than zinc
Answer: Option C
Which of the following metals cannot be easily cut by a knife?
A. aluminium
B. sodium
C. potassium
D. lithium
The chemical structure of the pearl is
A. Calcium Carbonate
B. Calcium Carbonate & Magnesium Carbonate
C. Calcium Chloride
D. Calcium Sulphate
Stainless steel does not rust because
A. chromium and nickel combine with iron
B. chromium forms an oxide layer and protects iron from rusting
C. nickel present in it, does not rust
D. iron forms a hard chemical compound with chromium present in it
Join The Discussion