Calcium, Copper, Lead, Aluminium, Zinc, Chromium, Magnesium and Iron. Choose the major metals from the list given above to make the following alloys :
Brass

Calcium, Copper, Lead, Aluminium, Zinc, Chromium, Magnesium and Iron. Choose the major metals from the list given above to make the following alloys : Stainless steel

Calcium, Copper, Lead, Aluminium, Zinc, Chromium, Magnesium, Iron Choose the major metals from the list given above to make the following alloys : (i) Stainless steel. (ii) Brass.

Choosing the substances from the list given: dil Sulphuric acid, Copper, Iron, Sodium, Copper [II} carbonate, Sodium carbonate, Sodium chloride, Zinc nitrate- Write balanced equations for the reactions which would be used in the laboratory to obtain the following salts. [i] Sodium sulphate [ii] Zinc carbonate [iii] Copper [II] sulphate [iv] Iron (II) sulphate

Choose the correct answer from the options A,B,C & D given : The reason for using aluminium in the alloy duralumin is :

Choosing the substances from the list given below, write balanced chemical equations for the reactions which would be used in the laboratory to obtain the following salts: Zinc carbonate

Fill in the blanks choosing appropriate word/ words from those given in the brackets : (gravity separation, magnetic separation, absence, presence, CuFeS_2 , Cu_2S , froth flotation, aluminium, iron, smelting, pure, impure, mines, copper, silver, sulfide, zinc, chromium nickel, tin, blister copper, Cus, Fes, thermal, electrical, argentite or silver glance (Ag_2S) , cuprous oxide, cuprous sulfide.) The process of reduction of metal oxides with carbon is called.........

Fill in the blanks choosing appropriate word/ words from those given in the brackets : (gravity separation, magnetic separation, absence, presence, CuFeS_2 , Cu_2S , froth flotation, aluminium, iron, smelting, pure, impure, mines, copper, silver, sulfide, zinc, chromium nickel, tin, blister copper, Cus, Fes, thermal, electrical, argentite or silver glance (Ag_2S) , cuprous oxide, cuprous sulfide.) Mining is the process of taking out the ore from the ...........

Fill in the blanks choosing appropriate word/ words from those given in the brackets : (gravity separation, magnetic separation, absence, presence, CuFeS_2 , Cu_2S , froth flotation, aluminium, iron, smelting, pure, impure, mines, copper, silver, sulfide, zinc, chromium nickel, tin, blister copper, Cus, Fes, thermal, electrical, argentite or silver glance (Ag_2S) , cuprous oxide, cuprous sulfide.) The removal of gangue from the ores is called ......