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When Grignard reagent is treated with water,alcohol,ammonia,$1^o$ amine,$2^o$ amine,alkyne-1 or carboxylic acid.We get alkane corresponding to alkyl part of Grignard reagent.In Grignard reagent C-atom is more electronegative than magnesium,hence its alkyl part acts are nucleophile and thus it will take an active hydrogen atom(H-atom that undergoes acylation) or acidic hydrogen atom to give its corresponding alkane.Also it is known that stronger acid displaces weak acid from weak acid salt.Total number of $1^o$ amine structures of a nitrogenous base having molecular formula $C_4H_{11}N$ is

$\begin{array}{1 1}(a)\;2&(b)\;3\\(c)\;6&(d)\;4\end{array}$

1 Answer

$2^o$ amine $\rightarrow CH_3-CH_2-CH_2-NH-CH_3,CH_3-CH_2-NH-CH_2-CH_3,$
$1^o$ amine $\rightarrow CH_3-CH_2-CH_2-CH_2-NH_2$,
Hence (d) 4 is the correct option.
answered Mar 19, 2014 by sreemathi.v

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