MCQ
Aromatic compounds burn with sooty flame because
- AThey have a ring structure of carbon atoms
- BThey have a relatively high percentage of hydrogen
- ✓They have a relatively high percentage of carbon
- DThey resist reaction with oxygen of air
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In an equilibrium mixture, the partial pressures are
$P_{S O_{3}}=43\,\mathrm{kPa} ; \quad P_{O_{2}}=530 \,\mathrm{~Pa}$ and
$\mathrm{P}_{\mathrm{SO}_{2}}=45\, \mathrm{kPa}$ The equilibrium constant $\mathrm{K}_{\mathrm{p}}=......\times 10^{-2} .$ (Nearest integer)
$(I)$ the nature of the ligand
$(II)$ the charge on the metal ion
$(III)$ whether the metal is in the first, second or third row of the transition elements