MCQ
Mosley's name is most closely associated with the discovery of
- APositron
- BDeutrons
- ✓Atomic number
- DAtomic weight
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Reason: Due to formation of a complex
$B$ reacts with Hydroxyl amine but does not give Tollen's test. Identify $A$ and $B$
$(i) \,\,\begin{array}{*{20}{c}}
{C{H_3}\,\,\,\,\,\,\,\,\,\,\,} \\
{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{C{H_3} - C - CH - C{H_3}} \\
{\,\,\,\,\,|} \\
{\,\,\,\,\,\,\,\,\,\,\,\,OH}
\end{array}\,\xrightarrow{{{H^ + }/heat}}\,\,\mathop A\limits_{[Major\,product]} \, + \,\mathop B\limits_{[Minor\,product]} $
$(ii)\,\, A\xrightarrow[{in\,\,absence\,\,\,of\,peroxide}]{{HBr,\,dark}}\,\,\mathop C\limits_{[Major\,product]} \, + \,\mathop D\limits_{[Minor\,product]} $
the major products $(A)$ and $(C)$ are respectively
Phenol $\xrightarrow[{{H^ + }}]{{{\text{CHC}}{{\text{l}}_3}{\text{ /NaOH}}}}$ Salicyladehyde