Question
Ionization enthalpy of an atom is equal to
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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
$1.$ The compounds $\mathrm{P}$ and $\mathrm{Q}$ respectively are
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$2.$ The compound $R$ is
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$3.$ The compound $\mathrm{S}$ is
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Give the answer question $1,2$ and $3.$