The catalyst used in the hydrogenation of oils is

Which of the following statements is incorrect?

Iron $(III)$ catalyses the reaction between iodide and persulphate ions,in which
$A$. $Fe^{3+}$ oxidises the iodide ion
$B$. $Fe^{3+}$ oxidises the persulphate ion
$C$. $Fe^{2+}$ reduces the iodide ion
$D$. $Fe^{2+}$ reduces the persulphate ion
Choose the most appropriate answer from the options given below:

Considering catalysis,which of the following statements is incorrect?

$ZSM-5$ is used in which of the following processes?

Wilhelm Ostwald redefined the action of