1.

(X)+K_2CO_3 +Air (Y) overset(H^+)to(Z) Purple : Which of the following is correct ?

Answer»

X=BLACK , `MnO_2`, Y=Blue , `K_2CrO_4` , Z=`KMnO_4`
X=GREEN , `Cr_2O_3` , Y=Yellow , `K_2CrO_4` , Z = `K_2Cr_2O_7`
X=black , `MnO_2` , Y = green , `K_2MnO_4` , Z = `KMnO_4`
X =black , `Bi_2O_3` , Y = COLOURLESS `KBiO_2 `, Z = `KBiO_3`

Answer :C


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