Related Questions

Non stick cocking utensils are coated with
A PVC
B Teflon
C black paint
D polystyrene
In galvanization, iron is coated with
A Copper
B Zinc
C Tin
D Nickel
A metal is exposed to the atmosphere for sometime. It becomes coated with green carbonate. The metal must be
A Silver
B Copper
C Aluminium
D Zinc
Food cans are coated with tin and 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 Zinc is less reactive than tin
Photographic plates are coated with
A Silver nitrate
B Silver halide
C Calcium silicate
D Metallic silver
Though tin occurs lower than iron in the electrochemical series, yet it is coated on steel for corrosion protection, because of its
A Lower cost
B Abundant availability
C Resistance to vegetable acids as the tin plate are commercially used in 'canning' industry
D None of these
Old cycle handles are coated with nickel using
A Cementation
B Spray coating
C Galvanising process
D Tinning process
Ammonium nitrate (a fertiliser) is coated with limestone powder to
A Increase its nitrogen content
B Cut down its production cost
C Avoid the risk of explosion
D Add extra nutrient as fertiliser

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