Question

A catalyst is:

a chemical found in leaves
a chemical which promotes a chemical reaction
a chemical which reacts with sunlight
a cell with chlorophyll

Answer 1

a catalyst is a substance that increases the rate of a chemical reaction without itself being consumed . (ans: second choice)

Answer 2

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The correct option is B.

A Catalyst is a chemical which promotes or speed up a chemical reaction without undergoing any chemical reaction itself.

for example : potassium permanganate - Hydrogen peroxide will decompose into water and oxygen gas in the presence of KMnO4.

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