MCQ
Three fused benzene rings are found in
- ANaphthalene
- ✓Anthracene
- CPhenanthroline
- DTriphenyl methane
Anthracene is used in the production of the red dye alizarin and other dyes.
Anthracene is colorless but exhibits a blue $(400-500\, nm$ peak) fluorescence under ultraviolet radiation
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Which conformer of above compound is most stable across $C_2 - C_3$ ?
$2 C _{( s )}+ O _{2( g )} \rightarrow 2 CO ( g )$
When $12\,g$ carbon is burnt in $48\,g$ of oxygen, the volume of carbon monoxide produced is $......\times 10^{-1}\,L$ at STP [nearest integer]
[Given : Assume $CO$ as ideal gas, Mass of $C$ is $12\,g\,mol ^{-1}$, Mass of $O$ is $16\,g\,mol ^{-1}$ and molar volume of an ideal gas at STP is $22.7\,L\, mol ^{-1}$ ]