${\rm{Na}}\left( {{\rm{N}}{{\rm{H}}_4}} \right){\rm{HP}}{{\rm{O}}_4}$

${\rm{N}}{{\rm{a}}_4}{{\rm{P}}_2}{{\rm{O}}_7}$

${\rm{Na}}\left( {{\rm{N}}{{\rm{H}}_3}} \right){\rm{HP}}{{\rm{O}}_4}.4{{\rm{H}}_2}{\rm{O}}$

${\rm{MgN}}{{\rm{H}}_4}{\rm{P}}{{\rm{O}}_4}$

NEET UG CHEMISTRY MCQ: S-BLOCK ELEMENTS

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Microcosmic salt is

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Correct option: B

\mathrm{Na}\left( {\mathrm{N}{\mathrm{H}_4}} \right)\mathrm{HP}{\mathrm{O}_4}

Option B (

\mathrm{Na}\left( {\mathrm{N}{\mathrm{H}_4}} \right)\mathrm{HP}{\mathrm{O}_4}

) is correct because it is the chemical formula for microcosmic salt.

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