1.

(X)+K_(2)CO_(3)+"Air" overset("heat")(to)(Y) (Y)+Cl_(2) to (Z)pink Which of the following is correct?

Answer»

X=black,`MnO_(2)`, Y=Blue, `CrO_(4)`, Z=`KMnO_(4)`
X=Green, `Cr_(2)O_(3)`, Y=Yellow, `K_(2)CrO_(4)`, Z=`K_(2)Cr_(2)O_(7)`
X=black, `MnO_(2)`, Y=green, `K_(2)MnO_(4)`, Z=`KMnO_(4)`
X=black, `Bi_(2)O_(3)`, Y=colourless, `KBiO_(2)`, Z=`KBiO_(3)`

Solution :`underset(X)(2MnO_(2))+2K_(2)CO_(3) +underset("air")(O_(2)) overset(Delta)(to)underset("greenY")(2K_(2)MnO_(4)+2CO_(2)(uarr)`
`underset(Y)(2K_(2)MnO_(4))+Cl_(2) to underset("(Z) pink")(2KMnO_(4)) +2KCl`


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