Which of the following salt form yellowish green gas when treated with conc. ${\mathrm{H}}_2{\mathrm{SO}}_4$ and ${\mathrm{MnO}}_2\text{ ? }$

When heated with concentrated ${\mathrm{H}}_2{\mathrm{SO}}_4$ solid chloride combined with manganese dioxide emits a  yellowish-green gas of chlorine with a suffocating odour

${\mathrm{NaHSO}}_4+\mathrm{HCl}\to \mathrm{NaCl}+{\mathrm{H}}_2{\mathrm{SO}}_4$

Hence, $\mathrm{NaCl}$ salt forms yellowish-green gas when treated with concentrated  ${\mathrm{H}}_2{\mathrm{SO}}_4$ and ${\mathrm{MnO}}_2$.