Hypothyroidism is caused by the deficiency of

Which of the following statements is incorrect for enzyme catalysis?

For the functioning of enzymes,which of the following statements is not correct?

Which of the following hormones contains iodine?

Match List-$I$ with List-$II$:

List-$I$ (Enzymatic reaction)	List-$II$ (Enzyme)
$A$. Sucrose $\rightarrow$ Glucose and Fructose	$I$. Zymase
$B$. Glucose $\rightarrow$ Ethyl alcohol and $CO_2$	$II$. Pepsin
$C$. Starch $\rightarrow$ Maltose	$III$. Invertase
$D$. Proteins $\rightarrow$ Amino acids	$IV$. Diastase

Choose the correct answer from the options given below:

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.