${{\rm{H}}_2}{\rm{S}}{{\rm{O}}_4}{\rm{\;and\;}}{{\rm{H}}_2}{\rm{S}}{{\rm{O}}_3}$ can be distinguished by the addition of:

${\rm{FeC}}{{\rm{l}}_3}{\rm{\;solution}}$

${\rm{NaHS}}{{\rm{O}}_4}{\rm{\;solution}}$

NEET UG CHEMISTRY MCQ: P-BLOCK ELEMENTS

1 Medium

1 of 1

Application +4 | -1

{\mathrm{H}_2}\mathrm{S}{\mathrm{O}_4}\mathrm{\;and\;}{\mathrm{H}_2}\mathrm{S}{\mathrm{O}_3}

can be distinguished by the addition of:

View answer and explanation

Correct option: B

\mathrm{FeC}{\mathrm{l}_3}\mathrm{\;solution}

Option B (

\mathrm{FeC}{\mathrm{l}_3}\mathrm{\;solution}

) is correct because

FeCl_3

can oxidize

H_2SO_3

H_2SO_4

, while

H_2SO_4

cannot reduce

Fe^{3+}

Fe^{2+}