What the usage of transition element in industries?...?

Question

and also their examples, their application and disadvantage

Answer 1

The Uses of Transition Metals

Transition metals are extremely useful metals on account of their physical or chemical properties. For example ….

Cast iron is used for man-hole covers because it is so hard wearing

Copper is used in electrical wiring because it is a good conductor of electricity

Copper is used in domestic hot water pipes because it is relatively unreactive to water and therefore doesn't corrode easily

Zinc is used to galvanise (coat) iron or steel to sacrificially protect them from corrosion

Compounds of copper, iron, chromium and cobalt are used to give bright colours to stained glass.

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Answer 2

Eg:

1. Fe ion is used as catalyst in manufacturing NH3

2. V2O5 is used in Contact Process ( manufacture of H2SO4)