MCQ
$M{n^{ + 2 }}$ can be converted into $M{n^{7 + }}$ by reacting with
- A$S{O_2}$
- B$C{l_2}$
- ✓$Pb{O_2}$
- D$SnC{l_2}$
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
(Given data : Molar mass and the molal freezing point depression constant of benzene are $78 g mol ^{-1}$ and $5.12 K kg mol ^{-1}$, respectively)

${{C}_{6}}{{H}_{6}}+C{{H}_{3}}CH=C{{H}_{2}}\xrightarrow[heat]{{{H}_{3}}P{{O}_{4}}}A\xrightarrow[2.\,{{H}_{3}}{{O}^{+}},heat]{1.\,{{O}_{2}},heat}B+C$
The products $(B)$ and $(C)$ are