If a mixture of NaCl, conc. H₂SO₄ and K₂Cr₂O₇ is heated in a dry test tube, a red vapour (P) is formed. This… · ABC26IN0462
Subject: Inorganic Chemistry · Chapter: Main Group Elements · Topic: Main Group Element – General · Exam: GATE 2005-2021 · Marks: 2 · Difficulty: Medium
If a mixture of $\mathrm{NaCl}$, conc. $\mathrm{H}_{2}\mathrm{SO}_{4}$ and $\mathrm{K}_{2}\mathrm{Cr}_{2}\mathrm{O}_{7}$ is heated in a dry test tube, a red vapour (P) is formed. This vapour (P) dissolves in aqueous $\mathrm{NaOH}$ to form a yellow solution, which upon treatment with $\mathrm{AgNO}_{3}$ forms a red solid (Q). P and are, respectively
(a)$\mathrm{CrO}_{2}\mathrm{Cl}_{2}$ and $\mathrm{Ag}_{2}\mathrm{Cr}_{2}\mathrm{O}_{7}$
(b)$\mathrm{Na}_{2}[\mathrm{CrOCl}_{5}]$ and $\mathrm{Ag}_{2}\mathrm{CrO}_{4}$
(c)$\mathrm{Na}_{2}[\mathrm{CrOCl}_{5}]$ and $\mathrm{Ag}_{2}\mathrm{Cr}_{2}\mathrm{O}_{7}$
(d)$\mathrm{CrO}_{2}\mathrm{Cl}_{2}$ and $\mathrm{Ag}_{2}\mathrm{CrO}_{4}$