MCQ
On heating $KMnO_4$, one among the following is not formed
- A$K_2MnO_4$
- B$O_2$
- C$MnO_2$
- ✓$MnO$
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$(I)\,\,Ph-CH=CH-COOH$
$(II)\,\,p-NO_2-C_6H_4-CH=CH-COOH$
$(III)\,\,p-MeO-C_6H_4-CH=CH-COOH$
$(IV)\,\,p-Cl-C_6H_4-CH=CH-COOH$
$x$ and $y$ mole consumed. Value of $x + y =$
