In Zeigler Natta polymerisation of ethylene, the active species is
AlCl3
Et3Al
CH2CH2
Ti3+
D.
Ti3+
(C2H5)3Al + TiCl4 → Active species
Ti3+ has one active site vacant and thus accommodate one alkyl group [as (C2H5)3Al reduces TiCl4 to TiCl3]
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
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
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
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