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प्रश्न
The allylic halide, among the following, is ______.
विकल्प
\[\begin{array}{cc}
\phantom{}\ce{R - CH - R}\phantom{}\\
|\phantom{..}\\
\ce{X}\phantom{..}
\end{array}\]CH2 = CH – X

CH2 = CH – CH2 – X
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उत्तर
The allylic halide, among the following is CH2 = CH – CH2 – X.
Explanation:
In allylic halides, halogen atom is bonded to a sp3 hybridized carbon atom next to a carbon-carbon double bond.
| CH2 = CH – CH2 – X | ![]() |
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संबंधित प्रश्न
Choose the most correct option.
Choose the compound from the following that will react fastest by SN1 mechanism

The product ‘B’ in the above reaction sequence is,
Match the pairs.
| Column I | Column II |
| \[\begin{array}{cc} \ce{CH3CH - CH3}\\ |\phantom{.....}\\ \ce{X\phantom{.....}} \end{array}\] |
vinyl halide |
| \[\ce{CH2 = CH - CH2X}\] | alkyl halide |
| \[\ce{CH2 = CH - X}\] | allyl halide |
| benzyl halide | |
| aryl halide |
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\[\ce{A ->[KCN (alcoholic)][\Delta] Propane nitrile +Potassium bromide}\]
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\[\ce{Ethanol ->[NaBr][H2SO4, \Delta] A ->[Mg][Dry ether] B}\]
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\[\ce{Ethene ->[A] Bromoethane ->[B][\Delta] Ethyl propionate}\]
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Complete the following reaction giving major product.
\[\begin{array}{cc}
\ce{CH3}\phantom{.................}\\
|\phantom{...................}\\
\ce{CH3 - C - CH2 - Cl ->[Na/dry either] A}\\
|\phantom{...................}\\
\ce{CH3}\phantom{.................}
\end{array}\]
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Identify A and B:
\[\ce{C6H5CH2Br ->[Alc.][KCN] A ->[Na/Ethanol] B}\]
Identify the chiral molecule from the following.
Among the following vinylic halide is ______.
Name the following halide according to IUPAC system and classify them as alkyl, allyl, benzyl (primary, secondary, tertiary), vinyl or aryl halides:
\[\ce{CH3C(C2H5)2CH2Br}\]

