329944
Which of the following statements is true for fuel cells?
1 They run till reactants are active
2 They are more efficient
3 They are free from pollution
4 All of these
Explanation:
Fuel cells are more efficient, free from pollution and they run till reactants are active.
CHXII03:ELECTROCHEMISTRY
329945
During galvanisation of iron, which metal is used for coating iron surface?
1 Copper
2 Zinc
3 Nickel
4 Tin
Explanation:
The process of coating iron objects with a thin layer of zinc is called galvanisation. It is done by dipping the object in moleten zinc. This method is used to prevent corrosion on iron objects.
329944
Which of the following statements is true for fuel cells?
1 They run till reactants are active
2 They are more efficient
3 They are free from pollution
4 All of these
Explanation:
Fuel cells are more efficient, free from pollution and they run till reactants are active.
CHXII03:ELECTROCHEMISTRY
329945
During galvanisation of iron, which metal is used for coating iron surface?
1 Copper
2 Zinc
3 Nickel
4 Tin
Explanation:
The process of coating iron objects with a thin layer of zinc is called galvanisation. It is done by dipping the object in moleten zinc. This method is used to prevent corrosion on iron objects.
