MCQ
Noradrenaline is a/an
- ✓Neurotransmitter
- BAntidepresessant
- CAntihistamine
- DAntacid
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$\begin{array}{l} Cl -\left( CH _2\right)_4- Cl \xrightarrow{\text { excess } NH _3} A \xrightarrow{ NaOH } \\ B + H _2 O + NaCl\end{array}$
$\mathrm{A}$ and $\mathrm{Y}$ are respectively
(Given atomic number $\mathrm{Sc}: 21, \mathrm{Ti}: 22, \mathrm{~V}: 23, \mathrm{Cr}$ : $24, \mathrm{Mn}: 25, \mathrm{Fe}: 26)$
(The freezing point depression constant for water $=2\; \mathrm{K}\; \mathrm{kg} \;\mathrm{mol}^{-1}$ )