For the production of methanol by following reaction, answer the following.

$\frac{2}{1}=2$

$CO+2H_{2}C{H}_{3}OH$

i$)$ The stoichiometric ratio of $H_2$ to $CO$

ii$)$ Kmole of $C{H}_{3}OH$ produced per kmole of $CO$ reacted

iii$)$ The weight ratio o $CO$ to $H_2$ if both are fed to the reactor in stoichiometric proportion

iv$)$ The quantity of $CO$ required to produce $1000kg$ of $C{H}_{3}OH$