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 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 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 reagent that can be used to distinguish between 1-butyne and 2-butyne is:
1. \(\mathrm{HCl}\)
2. \(\mathrm{O_{2}}\)
3. \(\mathrm{B r_{2}}\)
4. \(\mathrm{N a N H_{2}}\)
The increasing order of electrophilic substitution for the following compounds is:
1. | IV<I<II<III | 2. | III<II<I<IV |
3. | I<IV<III<II | 4. | II<III<I<IV |
In Friedel craft reaction, Toluene can be prepared by:
1. C6H6 + CH3Cl
2. C6H5Cl + CH4
3. C6H6 + CH2Cl2
4. C6H6 + CH3COCl
The reagent used to convert propene to 1-propanol is:
1. H2O, H2SO4
2. B2H6, H2O2, OH–
3. Hg(OAc)2, NaBH4/H2O
4. Aq. KOH