Chemistry is the branch of Science that is involved in the study of composition, properties and reactivity of matter. Chemistry is called the central science because it is involved in every other science as a foundation for example it is part of botany as plant chemistry; it is part of ecology as the formation of ozone. Catalysis is a part of chemistry that deals with catalysts which accelerate the chemical reaction without being consumed and the catalyst can be recovered at the end chemically unchanged. The term catalysis was first employed by the Swedish chemist Jons Jacob Berzelius in 1835. The application of catalysts to industrial processes was undertaken in the 19th century. The catalyst will provide an alternate route in which the chemical reaction can be undergone with an accelerated rate, whereas without the catalyst reactants will lack activation energy for the chemical reaction to occur.