MCQ
Carbon atoms in the compound ${(CN)_4}{C_2}$ are
- A$sp$ hybridized
- B$s{p^2}$ hybridized
- ✓$sp$ and $s{p^2}$ hybridized
- D$sp$, $s{p^2}$ and $s{p^3}$ hybridized

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In which case the value of $\Delta H_{sol.} < 0$
$n$ $l$ $m$ $s$