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प्रश्न
Name an alloy of lead used in electrical wiring or electrical work in joining metals.
उत्तर
Solder
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संबंधित प्रश्न
Select the process from the following which matches the given description.
(calcination, roasting, pulverisation, smelting)
Crushing of the ore into a fine powder.
Write the equation for the formation of aluminium at the cathode during the electrolysis of alumina.
State two conditions necessary for rusting of iron ?
State the use of:
cast iron
Complete the statement using every given option.
During the extraction of aluminium.........
Heating the aluminium ore with concentrated caustic soda.
Name the following:
The rocky impurities present in an ore.
Write the equation for the reaction of zinc of the following: Copper sulphate solution
State the main components of the following alloy:
Brass
Bauxite : Aluminium ore : : Cassiterite : _______
Nickel is purified by thermal decomposition of its:-
