Advertisements
Advertisements
प्रश्न
The correct order of increasing reactivity of C-X bond towards nucleophile in the following compounds is:
(I)
(II)
(III) (CH3)3 C-X
(IV) (CH3)2 CH-X
पर्याय
I < II < III < IV
II < I < III < IV
III < IV < II < I
IV < III < I < II
I < II < IV < III
Advertisements
उत्तर
I < II < IV < III
Explanation:
Alkyl halides are more reactive than aryl halides. This is because of the partial double bond character between the benzene ring and the halogen. Further, in alkyl halides, the greater the stability of carbocation formed, the more would be the reactivity. Thus, the tertiary halide is more reactive. Nitro group which is electron-withdrawing increases the reactivity of aryl halide.
Notes
The correct option is not given in the textbook.
APPEARS IN
संबंधित प्रश्न
\[\ce{CH3 - CH = CH2 ->[HI][Peroxide]}\]
The major product of the above reaction is,
Butanenitrile may be prepared by heating ______.
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 |
The type of mono halogen derivative in which a halogen atom is bonded to sp3 hybridized carbon atom next to carbon-carbon double bond is ______________
The bond line formula of 1-iodo-2, 3-dimethyl pentane is
The conversion of 2-methylpropan-1-ol to 2-methylpropan-2-ol is ______.
Alkyl chloride containing 4° carbon atom(s) would be ____________.
What is the IUPAC name of neopentyl chloride?
How many asymmetric carbon atoms are present in neopentyl chloride?
Identify A and B respectively in the following conversion.
\[\ce{Ethene ->[A] Bromoethane ->[B][\Delta] Ethyl propionate}\]
The decreasing order of the rate of nitration of benzene (I), C6D6 (II), nitrobenzene (III), chlorobenzene (IV) is ______.
The allylic halide, among the following, is ______.
Identify the chiral molecule from the following.
Identify the chiral molecule from the following.
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:
\[\ce{CH3C(C2H5)2CH2Br}\]
