Can rusting of iron take place in distilled water?

${\mathrm{C}}_6{\mathrm{H}}_{12}{\mathrm{O}}_6\left(\mathrm{aq}\right)+6{\mathrm{O}}_2\left(\mathrm{g}\right)\to \mathcal{X}{\mathrm{CO}}_2\left(\mathrm{g}\right)+6{\mathrm{H}}_2\mathrm{O}\left(\mathrm{l}\right)+\mathrm{Energy}$

The value of $\mathcal{X}$ in the balance chemical equation is:

Among the following, the number of underlined elements having $+5$ oxidation state are:

Nandita mixed two solutions $\mathrm{X}$ and $\mathrm{Y}$. She recorded the following observations and conclusions in her notebook.

$\mathrm{I}.$ A yellow precipitate is formed.

$\mathrm{II}.$It is a double displacement reaction.

The solutions $\mathrm{X}$ and $\mathrm{Y}$ respectively are:

$\mathrm{Mg}+\mathrm{CuO}\to \mathrm{MgO}+\mathrm{Cu}$

Which of the following statements is wrong relating to the above equation?

Which of the following are exothermic processes?

$\mathrm{I}.$Reaction of water with quick lime.

$\mathrm{II}.$Dilution of an acid.

$\mathrm{III}.$Evaporation of water.

$\mathrm{IV}.$Sublimation of camphor.