Which of the following alkane cannot be made in good yield by Wurtz reaction?
1. | 2,3-Dimethylbutane | 2. | n-Heptane |
3. | n-Butane | 4. | n-Hexane |
An alkene on ozonolysis gives methanal as one of the products. Its structure is:
1. | 2. | ||
3. | 4. |
Which of the following statement(s) is/are correct about the elimination reaction of 2-Bromopentane to form pent-2-ene:
(a) -Elimination reaction
(b) Follows Zaitsev rule
(c) Dehydrohalogenation reaction
(d) Dehydration reaction
1. | (a), (c), (d) | 2. | (b), (c), (d) |
3. | (a), (b), (d) | 4. | (a), (b), (c) |
Which of the following is a free radical substitution reaction?
1. Benzene with Br2/AlCl3
2. Acetylene with HBr
3. Methane with Br2/hv
4. Propene with HBr/(C6H5COO)2
In the following reaction,
\(\mathrm{ CH_{3}C\equiv CH\xrightarrow[Red \ hot \ iron \ tube]{873 K} \ A}\)
The number of () bonds present in the product (A) is:
1. | 21 | 2. | 9 |
3. | 24 | 4. | 18 |
The alkane that gives only one monochloro product on chlorination with \(\text{Cl}_2\) in presence of diffused sunlight is-
1. | 2,2,-Dimethylbutane | 2. | Neopentane |
3. | n-Pentane | 4. | Isopentane |
The dihedral angle of the least stable conformer of ethane is:
1. | 60° | 2. | 0° |
3. | 120° | 4. | 180° |
The major product of the following chemical reaction is:
1. | |
2. | |
3. | |
4. |
The reaction among the following that proceeds through an electrophilic substitution reaction is:
1. | |
2. | |
3. | |
4. |
The most suitable reagent for the following conversion is-
1. Hg2+/ H+, H2O
2. Na/liquid NH3
3. H2, Pd/C, quinoline
4. Zn/HCl