Advertisements
Advertisements
Question
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
Options
I < II < III < IV
II < I < III < IV
III < IV < II < I
IV < III < I < II
I < II < IV < III
Solution
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
RELATED QUESTIONS
\[\ce{CH3 - CH = CH2 ->[HI][Peroxide]}\]
The major product of the above reaction is, _______.
Butanenitrile may be prepared by heating ______.
The product ‘B’ in the above reaction sequence is,
Choose the most correct option.
Which of the following is likely to undergo racemization during alkaline hydrolysis?
(I)
\[\begin{array}{cc}
\ce{CH3-CH-C2H5}\\
|\\
\ce{Cl}\end{array}\]
(II)
(III)
(IV)
\[\begin{array}{cc}
\ce{\phantom{.......}CH3}\\
\phantom{.....}|\\
\ce{CH3-CH}\\
\phantom{.....}|\\
\ce{\phantom{..........}CH2Cl}
\end{array}\]
Match the pairs.
| Column I | Column II |
| \[\begin{array}{cc}\ce{CH3CH - CH3}\\|\phantom{....}\\ \ce{X\phantom{....}}\end{array}\] |
vinyl halide |
| CH2 = CH - CH2X | alkyl halide |
| 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
When propene reacts with HCl in presence of peroxide, the product is ________.
Identify A in the following reaction,
\[\ce{A ->[KCN (alcoholic)][\Delta] Propane nitrile +Potassium bromide}\]
Alkyl chloride containing 4° carbon atom(s) would be ____________.
Identify 'B' in the following series of reactions.
\[\ce{Ethanol ->[NaBr][H2SO4, \Delta] A ->[Mg][Dry ether] B}\]
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 IUPAC name of isobutyl bromide is ____________.
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 ______.
Complete the following reaction giving major product.
\[\begin{array}{cc}
\ce{CH3}\phantom{.................}\\
|\phantom{...................}\\
\ce{CH3 - C - CH2 - Cl ->[Na/dry either] A}\\
|\phantom{...................}\\
\ce{CH3}\phantom{.................}
\end{array}\]
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.
Name the following halide according to IUPAC system and classify them as alkyl, allyl, benzyl (primary, secondary, tertiary), vinyl or aryl halides:
\[\ce{CH3C(C2H5)2CH2Br}\]
