Which of the following statements is incorrect?

$Fermentation$ is a reaction called

Which of the following statements about enzymes are correct?
$(i)$ They lack nucleophilic groups.
$(ii)$ They are highly specific.
$(iii)$ They catalyze reactions by lowering the activation energy of the reaction.
$(iv)$ Pepsin is a proteolytic enzyme.

Which of the following ions acts as a cofactor in enzymes?

Name the enzymes and write the reactions involved in the preparation of ethanol from sucrose by fermentation.

Explain the catalytic action of enzymes.