Write the applications of organometallic compounds. - Vidyadip

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Write the applications of organometallic compounds.

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A hydrocarbon $'A', (C_4H_8)$ on reaction with $HCl$ gives a compound $'B', (C_4H_9Cl)$, which on reaction with $1 \ mol$ of $NH_3$ gives compound $'C', (C_4H_{11}N)$. On reacting with $NaNO_2$ and $HCl$ followed by treatment with water, compound $'C\ '$ yields an optically active alcohol,$'D\ '$. Ozonolysis of $'A\ '$ gives $2$ mols of acetaldehyde. Identify compounds $'A\ '$ to $'D\ '$. Explain the reactions involved.

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$ \text{MnO}_{4}^{-}\text{(aq)}+\text{S}_{2}\text{O}_{4}\text{(aq)}+\text{H}_{2}\text{O}\text{(l)}\rightarrow$
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