Question

what is catalyst ? and name some catalysts.

Answer 1

catalysts are substances which accelerates the rate of reaction without actually taking part in it.

some catalysts are -

1) V2O5 (vanadium pentaoxide)
2) Fe (iron)
3)Pt (Platinum)

Answer 2

Hi Buddy !
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Catalysts are  that speed up the reaction but does not undergoes any change themselves .
like = @ manganese
          @ Tungsten