The reddish brown gas produced by heating KCl with K2Cr2O7 (solid) and conc. H2SO4 is

Question

The reddish brown gas produced by heating KCl with K2Cr2O7 (solid) and conc. H2SO4 is (A)  Cl2  (B)  CrO2Cl2  (C)  CrO3  (D)  H2CrO4

Tardigrade Admin · Accepted Answer

When KCl is heated with acidic K2Cr2O7, reddish brown gas of chromyl chloride evaporated. 4KCl + K2Cr2O7 + 3H2SO4 xrightarrowΔ underset textchromyl chloride2CrO2Cl2 uparrow + 2Na2 SO4 + K2SO4 + 3H2O

Q. The reddish brown gas produced by heating $K Cl$ with $K_{2} C r_{2} O_{7}$ (solid) and conc. $H_{2} S O_{4}$ is

$C l_{2}$

$C r O_{2} C l_{2}$

$C r O_{3}$

$H_{2} C r O_{4}$

When $K Cl$ is heated with acidic $K_{2} C r_{2} O_{7}$ , reddish brown gas of chromyl chloride evaporated.
$4 K Cl + K_{2} C r_{2} O_{7} + 3 H_{2} S O_{4} Δ$
$chromyl chloride 2 C r O_{2} C l_{2} ↑ + 2 N a_{2} S O_{4} + K_{2} S O_{4} + 3 H_{2} O$

Q. The reddish brown gas produced by heating KCl with K2​Cr2​O7​ (solid) and conc. H2​SO4​ is

Cl2​

CrO2​Cl2​

CrO3​

H2​CrO4​