Which of the following solid salt on heating with solid K₂Cr₂O₇ and conc. H₂SO₄ orange red vapours are evolved which turn aquous NaOH solution yellow ?

${\mathrm{NaCl}}_{\left(\mathrm{s}\right)}+{\mathrm{K}}_2{\mathrm{Cr}}_2{\mathrm{O}}_{7\left(\mathrm{s}\right)}+{\mathrm{H}}_2{\mathrm{SO}}_4\text{ (few drops) }\underset{\mathrm{reaction}}{\overset{\mathrm{Non}-\mathrm{redox}}{\to }}\underset{(\mathrm{orange} \mathrm{red} \mathrm{vapours})}{{\mathrm{CrO}}_2{\mathrm{Cl}}_2\uparrow }+\mathrm{HO}$

When CrO₂Cl₂ is treated with NaOH, then it forms a yellow color solution.
${\mathrm{CrO}}_2{\mathrm{Cl}}_2+{\mathrm{OH}}_{(\mathrm{aq}.)}^{-}⟶\underset{\mathrm{Yellow} \mathrm{solution}}{{\mathrm{CrO}}_{4(\mathrm{aq}.)}^{2-}}+{\mathrm{Cl}}^{-}+2{\mathrm{H}}_2\mathrm{O}$