MCQ
The oxidation state of $Mn$ in ${K_2}Mn{O_4}$
- A$+2$
- B$+7$
- C$-2$
- ✓$+6$
$2 + x - 2 \times 4 = 0$
$x = 8 - 2 = + 6$.
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$(A)$ Graphite is harder than diamond.
$(B)$ Graphite has higher electrical conductivity than diamond
$(C)$ Graphite has higher thermal conductivity than diamond
$(D)$ Graphite has higher $C$ - $C$ bond order than diamond
