In the following reaction, ${\rm{NaOH}} + {\rm{S}} \to A + {\rm{N}}{{\rm{a}}_2}{\rm{S}} + {{\rm{H}}_2}{\rm{O}};A{\rm{is}}$

${\rm{N}}{{\rm{a}}_2}{{\rm{S}}_2}{{\rm{O}}_3}$

${\rm{N}}{{\rm{a}}_2}{\rm{S}}{{\rm{O}}_4}$

${\rm{N}}{{\rm{a}}_2}{\rm{S}}{{\rm{O}}_3}$

NEET UG CHEMISTRY MCQ: S-BLOCK ELEMENTS

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Analyzing +4 | -1

In the following reaction,

\mathrm{NaOH} + \mathrm{S} \to A + \mathrm{N}{\mathrm{a}_2}\mathrm{S} + {\mathrm{H}_2}\mathrm{O};A\mathrm{is}

View answer and explanation

Correct option: D

\mathrm{N}{\mathrm{a}_2}{\mathrm{S}_2}{\mathrm{O}_3}

Option D (

\mathrm{N}{\mathrm{a}_2}{\mathrm{S}_2}{\mathrm{O}_3}

) is correct because the reaction of NaOH with S produces sodium thiosulfate (

\mathrm{N}{\mathrm{a}_2}{\mathrm{S}_2}{\mathrm{O}_3}

) along with

Na_2S

and water.