Biomolecules — Chemistry STD 12 Science — Question

$6 \mathrm{OH}^{-}+\mathrm{Cl}^{-} \rightarrow \mathrm{ClO}_{3}^{-}+3 \mathrm{H}_{2} \mathrm{O}+6 \mathrm{e}^{-}$

A current of $x A$ has to be passed for $10 h$ to produce $10.0 \mathrm{~g}$ of potassium chlorate. The value of $\mathrm{x}$ is $.......$ (Nearest integer)

(Molar mass of $\left.\mathrm{KClO}_{3}=122.6 \mathrm{~g} \mathrm{~mol}^{-1}, \mathrm{~F}=96500 \mathrm{C}\right)$

$(1)$ $Fe^{3+}$ gives brown colour with potassium ferricyanide

$(2)$ $Fe^{2+}$ gives blue colour with potassium ferricyanide

$(3)$ $Fe^{3+}$ gives red colour with potassium thiocyanate

$(4)$ $Fe^{2+}$ gives brown colour with ammonium thiocyanate