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प्रश्न
Explain why Grignard reagents should be prepared under anhydrous conditions?
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उत्तर
Grignard reagents are very reactive. In the presence of moisture, they react to give alkanes.
\[\ce{\underset{reagent}{\underset{Grigrard}{\overset{\delta-}{R} \overset{\delta +}{M}g \overset{\delta -}{X}}} + H2O -> \underset{Alkane}{R - H} + Mg (OH) X}\]
Therefore, Grignard reagents should be prepared under anhydrous conditions.
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संबंधित प्रश्न
Identify A, B, C, D, E, R and R1 in the following:
Write the structure of the major organic product in the following reaction:
\[\ce{C6H5ONa + C2H5Cl ->}\]
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Which of the following alkyl halides is used as a methylating agent?
Why is it necessary to avoid even traces of moisture during the use of a Grignard reagent?
Reaction of Grignard reagent with aromatic aldehyde and subsequent aqueous treatment produces
\[\ce{R - CH2 - CCl2 - R ->[Peagent] R - C ≅ C - R}\]. The reagent is:-
A product (1) of above reaction is:-
Grignard reagent shows addition on
The product formed in the first step of the reaction
\[\begin{array}{cc}
\ce{Br}\phantom{......}\\
|\phantom{.......}\\
\ce{CH3-CH2-CH-CH2-CH-CH3}\\
\phantom{...............}|\\
\phantom{................}\ce{Br}
\end{array}\]
with excess Mg/Et2O(Et = C2H5) is:
Explain why Grignard reagents should be prepared under anhydrous conditions.
Explain why Grignard reagents should be prepared under anhydrous conditions?
Explain why Grignard reagents should be prepared under anhydrous conditions?
Explain why Grignard reagents should be prepared under anhydrous conditions?
Explain why Grignard reagents should be prepared under anhydrous conditions?
Explain why Grignard reagents should be prepared under anhydrous conditions?
