Which of the following is a catalytic reaction?

Chemical Reaction Engineering Mcqs
BILAL KHATTAK0

A.Synthesis of water by passing electric sparks through a mixture of hydrogen and oxygen
B.Neutralization of a dilute alkali solution by a small amount of a conentrated acid
C.Hydrolysis of an ester in the presence of H+
D.Darkening of silver halides in light

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