$(\mathrm{X})+\mathrm{K}_{2} \mathrm{CO}_{3}+\mathrm{Air} \stackrel{\text { heat…

$(\mathrm{X})+\mathrm{K}_{2} \mathrm{CO}_{3}+\mathrm{Air} \stackrel{\text { heat }}{\longrightarrow}(\mathrm{Y})$
$(\mathrm{Y})+\mathrm{Cl}_{2} \longrightarrow(\mathrm{Z}) \operatorname{Pink}$
Which of the following is correct?
  1. $\mathrm{X}=$ black, $\mathrm{MnO}_{2}, \mathrm{Y}=$ Blue,
    $\mathrm{K}_{2} \mathrm{CrO}_{4}, \mathrm{Z}=\mathrm{KMnO}_{4}$
  2. $\mathrm{X}=$ green, $\mathrm{Cr}_{2} \mathrm{O}_{3}, \mathrm{Y}=$ Yellow,
    $\mathrm{K}_{2} \mathrm{CrO}_{4}, \mathrm{Z}=\mathrm{K}_{2} \mathrm{Cr}_{2} \mathrm{O}_{7}$
  3. $\mathrm{X}=$ black, $\mathrm{MnO}_{2}, \mathrm{Y}=$ green,
    $\mathrm{K}_{2} \mathrm{MnO}_{4}, \mathrm{Z}=\mathrm{KMnO}_{4}$
  4. $\mathrm{X}=$ black, $\mathrm{Bi}_{2} \mathrm{O}_{3}, \mathrm{Y}=$ colourless
    $\mathrm{KBiO}_{2}, \mathrm{Z}=\mathrm{KBiO}_{3}$

Solution

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Asked in: JEE-TOPICTESTS-CHEMISTRY

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