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  • (a) What is an amalgam ? (b) Why is solder used for making electrical fuse ? (c) What is galvanisation ? State its significance. (d) In the electrolytic refining of copper, name the anode and cathode used and the electrolyte taken

(a) What is an amalgam ?
(b) Why is solder used for making electrical fuse ?
(c) What is galvanisation ? State its significance.
(d) In the electrolytic refining of copper, name the anode and cathode used and the electrolyte taken in the cell.

 

 

 

 
 
 
 
 

Answers (1)

(a) Amalgam is an alloy in which one of the constituent is the mercury 

(b) Solder used for making electrical fuse because of its lower melting point 

(c) Galvanisation is the process of caoting of iron with layer of Zinc to protect it from rusting.

(d) Anode –Impure copper

Cathode –Pure copper

Electrolyte– Acidified copper sulphate solution

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