Question

what is meant by the catalyst? write two chemical reaction in which catalyst is used name the catalyst​

Answer 1

Explanation:

catalyst is the substance that accelerates or decelerate the rate of reaction without undergoing any change.

4NH3 + 5O2______platinum__4NO2+ 6H2O

(platinum is catalyst on the head of arrow)

2SO2+ O2__vanadium pentoxide (V2O5)__2 SO3

( vanadium pentoxide)

Answer 2

Answer:

catalyst are used to increase or decrease the speed of a reaction

Explanation:

there are two type of catalyst negative and positive negative catalyst slowdown the reaction and positive catalyst increase speed of the reaction

eg:

2H202 GIVES 2H20+02 in the presence of a positive catalyst mno2 its magnisium oxide

Alcohol acts as a negative catalyst in the oxidation of Na2SO3