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प्रश्न
A primary alkyl halide would prefer to undergo ______.
पर्याय
SN1 reaction
SN2 reaction
α–Elimination
Racemisation
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उत्तर
A primary alkyl halide would prefer to undergo SN2 reaction.
Explanation:
SN2 type reactions (i.e. bimolecular nucleophilic substitution) proceed in one step and the rate of reaction depends on concentration of alkyl halide as well as nucleophile i.e. r = k[RX][Nu]. It is a second-order reaction. During SN2 reaction, inversion in configuration occurs (viz. starting with dextrorotatory halide a laevorotatory product is obtained and vice-versa).
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संबंधित प्रश्न
How do you convert the following:
Ethanol to propanenitrile
Out of
, which is more reactive towards SN1 reaction and why?
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\[\ce{CH3CH(Br)CH2CH3 + NaOH ->[water]}\]
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(a) 2- Bromo-2 methylbutane
(b) 1 -Bromo-2,2-dimethylpropane
(c) 1 - Bromo - 3 -methylbutane
(d) 1 - Bromo- 2 -methylpropane
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- CH3Br or CH3
- CH3Cl, (CH3)3CCl
Which of the following is optically inactive?
Which of the following pairs is/are correctly matched?
| Reaction | Product | |
| I | RX + AgCN | RNC |
| II | RX + KCN | RCN |
| III | RX + KNO2 | \[\begin{array}{cc} \phantom{.......}\ce{O}\\ \phantom{.....}/\\ \ce{R - N}\phantom{....}\\ \phantom{.....}\backslash\backslash\\ \phantom{.......}\ce{O} \end{array}\] |
| IV | RX + AgNO2 | \[\ce{R-O-N=O}\] |
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An organic molecule necessarily shows optical activity if it ____________.
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(I) \[\begin{array}{cc}
\ce{CH3-CH-CH2-CH3}\\
|\phantom{........}\\
\ce{CH3}\phantom{.....}
\end{array}\]
(II) CH3CH2CH2Cl
(III) P–CH3O–C6H4–CH2Cl
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An organic compound A with the molecular formula (+) C4H9Br undergoes hydrolysis to form (+) C4H9OH. Give the structure of A and write the mechanism of the reaction.
