Potassium dichromate `(K_(2)Cr_(2)O_(7))` is an orange coloured compound, very frequently used in laboratory as an oxidising agent as well as in a redox titration. It is generally prepared from chromit `(FeCr_(2)O_(4))` ore according to the following reactions:
(a) Fusion of chromite ore with sodium carbonate in excess of air.
`FeCr_(2)O_(4)+Na_(2)CO_(3)+O_(2) to Na_(2)CrO_(4)+Fe_(2)O_(3)+CO_(2)`
(b) Acidifying filetered sodium chromate solution with sulphuric acid.
`Na_(2)CrO_(4)+H_(2)SO_(4) to Na_(2)Cr_(2)O_(7)+Na_(2)SO_(4)+H_(2)O`
(c) Treating sodium dichromate with potassium chloride.
`Na_(2)Cr_(2)O_(7)+KCl to K_(2)Cr_(2)O_(7)+NaCl`
Answer the following questions using above information.
If the number of moles of reactants available for reactions are: {`FeCr_(2)O_(4)`=0.25 moles, `O_(2)`=0.35 moles, `Na_(2)CO_(3)`=0.60 moles, `H_(2)SO_(4)`=0.2 mol,es, KCl=0.1 moles}, then the maximum number of moles of `K_(2)Cr_(2)O_(7)`, that can be produced is :

Options

A. 0.05 moles
B. 0.1 moles
C. 0.2moles
D. 0.5moles

Answer

a