How many delocalised π-electrons are there in the following compound?
1
2
3
6
D.
6
In the given compound, 4 π-electrons of double bond and 1 lone pair on N-atom leads to delocalisation of 6 π-electrons.
The IUPAC name of
4-bromo-2-chloro-5-iodo-1-fluorobenzene
2-carbamoylhex-3-enal
1-bromo-2-chloro-3-fluoro-6-iodobenzene
2-bromo-1-chloro-5-fluoro-3-iodobenzene
Which one of the following represents the major product of the reaction of benzene with 2, 2-dimethylpropyl chloride in presence of anhydrous aluminium chloride?
2, 2-dimethylpropylbenzene
1, 1-dimethylpropylbenzene
1, 2-dimethylpropylbenzene
1, 2-dimethyl-1-propenylbenzene
Octane number of petrol can be improved by admixing it with which of the following chemicals?
Et4Pb
CH3OC(CH3)3
Both (a) and (b)
Pyrene
An alkyl bromide is formed as the major product on reaction of 3-methyl-2-butene with hydrobromic acid under thermodynamic conditions. Which of the following is the correct IUPAC name of this product?
2-bromo-3-methylbutane
1-bromo-3-methylbutane
2-bromo-2-methylbutane
1-bromo-3-methyl-2-butene