The dihedral angle of the least stable conformer of ethane is:
1. | 60° | 2. | 0° |
3. | 120° | 4. | 180° |
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
An alkene "A" on reaction with and gives propanone and ethanal in equimolar ratio. The addition of HCl to alkene "A" gives "B" as the major product. The structure of product "B" 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