Q48 of 400 Page 133

State one use each of the following metals: Copper, Aluminium, Iron, Silver, Gold, Mercury

Copper:- copper is used for making electric wire to carry electric current.

Aluminium:- for the packaging of food aluminium foil is used.


Iron:- utensils are manufactured by the iron.


Silver:- to make jewelry silver is being used.


Gold:- for the purpose of jewelry making gold is used.


Mercury:- in thermometers mercury is being used.



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46 A copper plate was dipped in AgN03 Solution. After certain time, silver from the solution was deposited on the copper plate. State the reason why it happened. Give the chemical equation of the reaction involved. 47 State five uses of metals and five of non-metals. 49 State one use each of the following non-metals: Hydrogen, Carbon (as Graphite), Nitrogen, Sulphur 49 Name the metal which is used in making thermometers.