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
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
Which of the following is not the characteristic of arenes:
1. More stability
2. Resonance
3. Delocalization of π electrons
4. Electrophilic addition
When 2-Bromopentane reacts with ethanolic KOH, the main product that is formed is:
1. | Cis-2-pentene | 2. | Trans-2-pentene |
3. | 1-pentene | 4. | None of the above |
Phenylacetylene undergoes a reaction with dilute H2SO4 in the presence of HgSO4 to yield:
1. | 2. | ||
3. | 4. |
Compound 'A' on chlorination gives compound 'B'. 'B' reacts with alc. KOH to give gas 'C' which decolorizes Baeyer reagent. Ozonolysis of compound 'C' gives only HCHO compound. Compound 'A' is
1. | C2 H6 | 2. | C2H4 |
3. | C4H10 | 4. | C2H5Cl |
The reaction of HBr with propene in the presence of peroxide gives:
1. 3-bromopropane
2. Allyl bromide
3. n-propyl bromide
4. Isopropyl bromide