In the following reaction the catalyst used is:
+ 3
1. 2.
3. Zn dust 4. and
A (Major)
The product "A" is -
1. 2.
3. 4.
Which of the following bromides is the major product of the reaction shown below, assuming that there are no carbocation rearrangement?
1.
2.
3.
4.
(A);
Major product (A) is:
(a)
(b)
(c)
(d)
Product (C) of the above reaction is :
1. 1,3-Hexadiene
2. 1,4-Pentadiene
3. 1,3-Butadiene
4. 1,3-Heptadiene
The reagents used for the following conversion is/are-
1. | (i) NaNH2 , (ii) CH3CHO |
2. | (i) NaNH2 , (ii) CH3-CH2-CH2-Br |
3. | (i) KOH, (ii) CH3-CH2-CH2-Br |
4. | (i) KOH, (ii) |
Which alkyne(s) will yield 3-ethylhexane upon catalytic hydrogenation?
1. | 2. | ||
3. | 4. | All of the above |
To carry out the above conversion, (A) and (B) respectively are:
1. NaNH2, Cl - CH2ーCH2 - CH2 - Br
2. NaNH2, CH2-CH2-CH2-Br
3. NaNH2, l-CH2ーCH2-CH2-Br
4. NaNH2, I-CH2-CH2-CH2-I
The strongest acid among the following is -
1. | 2. | ||
3. | 4. |
Product (C) is:
1. | 2. | ||
3. | 4. |
Product (A) in this reaction is:
1.
2.
3.
4.
Which of the following compounds is non-aromatic?
1. | 2. | ||
3. | 4. |
1.
2. Cl-
3. Cl
4. Cl2+
The product (B) in the above-mentioned reaction is:
1. | 2. | ||
3. | 4. |
(A), Product (A) of this reaction is:
(a)
(b)
(c)
(d)
p-Toluidine reacts with benzene diazonium chloride to form compound, which on boiling with aq. H2SO4 give .......... products:
(1) 3
(2) 2
(3) 4
(4) 5
The compounds among the following that can be generated by Friedel craft acylation is/are -
I. | |
II. | |
III. | |
IV. |
1. | II, III and IV | 2. | I, III and IV |
3. | I and II | 4. | II and III |
Partial oxidation of methane with Ni/Al2O3 catalyst gives:
1. HCHO
2. HCOOH
3. H2O and CO2
4. CO and H2O
The products that formed when the following compound is treated with Br2 in the presence of FeBr3 are:
1. | |
2. | |
3. | |
4. |
Identity Z in the sequence of reactions,
HBr/H2O2
CH3CH2CH=CH2 → Y + C2H5O-Na+→ Z
1. CH3-(CH2)3-O-CH2CH3
2. (CH3)2CH2-O-CH2CH3
3. CH3(CH2)4-O-CH3
4. CH3CH2-CH(CH3)-O-CH2CH3
In the following reaction, What will be the major product?
1.
2.
3.
4.
Nitrobenzene can be prepared from benzene by using a mixture of conc. HNO3 and conc.
H2SO4. In the mixture, nitric acid acts as a/an-
1. Reducing agent
2. Acid
3. Base
4. Catalyst
The number of isomeric sodium salt of acid that will be required to obtain neopentane is-
1. 3
2. 1
3. 4
4. 6
The most probable mechanism for this reaction is-
1. E1
2. E2
3.
4. elimination
The type of reaction and intermediate of decarboxylation reaction are.-
(1)
(2)
(3)
(4)
Which of the following compounds has the highest melting point?
1.
2.
3.
4.
XY (major product)
The product Y is -