The major end product of the following reaction is

1.
2.
3.
4.

Z

The product of following reacting is

(1)
(2)
(3)
(4)

The product in the given reaction is

(1)
(2)
(3)
(4)

Conversion of cyclohexene to cyclohexanol can be conveniently achieved by:

1. NaOH + H₂O

2. Br₂-H₂O

3. Hydroboration, oxidation

4. Hydroboration hydrolysis

Bromination of (E)-2-butenedioic acid gives

(1) (2R, 3S)-2, 3-dibromosuccinic acid

(2) (2R, 3R)-2, 3-dibroniosuccinic acid

(3) a mixture of (2R, 3R) and (2S, 3S)-2, 3-dibromosuccinic acid

(4) (2S, 3S)-2, 3-dibromosuccinic acid

Consider the following reaction:-

Which response contains all the correct statement about this process?
(1)Dehydration
(2)E₂ mechanism
(3)Carbon skeleton migration
(4)Most stable alkene will form
(5)Single-step reaction

(a)1,3        (b)1,2,3         (c)1,2,5          (d)1,3,4

$\underset{\mathrm{heat}}{\overset{{\mathrm{H}}_3{\mathrm{PO}}_4}{\to }} \mathrm{OH} +$

$\stackrel{\mathrm{HBr}}{\to }\left(\mathrm{X}\right) \underset{\mathrm{acetone}}{\overset{\mathrm{NaI}}{\to }}\left(\mathrm{Y}\right) \left(\mathrm{Major}\right)$; Product (Y) is:

(1) cis-2-butene                                 

(2) trans-2-butene

(3) 1-butene                                   

(4) Iso-butene

Which position will be attacked most rapidly by the nitronium ion (-NO₂)⁺ when the compound undergoes nitration with HNO₃/H₂SO₄ :-

1. A

2. B

3. C

4. D

The electrophilic aromatic substitution proceeds through a:

(1) free radical

(2) sigma complex

(3) benzyne

(4) carbene

Which of the following substitution of benzene is ortho-para in electrophilic substitution and ortho-para in nucleophilic substitution ?

(1) -NO₂

(2) -NO

(3) -SO₃H

(4) -SO₂Me