Multiple Choice QuestionsWhich of the following statement is correct for a nucleophile?
Nucleophile is s Lewis acid
Ammonia is a nucleophile
Nucleophiles attack low electrons density sites
Nucleophiles attack low electrons density sites
The number of structural isomers possible from the molecular formula C3H9N is
4
5
2
2
Two possible stereo-structures of CH3CHOH.COOH, which are optically active, are called
diastereomers
atropisomers
enantiomers
enantiomers
Liquid hydrocarbons can be converted to a mixture of gaseous hydrocarbons by
oxidation
cracking
distillation under reduced pressure
distillation under reduced pressure
In the following the most stable conformation of n-butane is
B.
The conformation in which the heavier groups are present at maximum possible distances so that the forces of repulsion get weak is more stable.
Among the given conformations of n- butane, the conformation is shown in option (b) ie, anti conformation is most stable as in it the bulkier groups I(ie, CH3 group) are present at the maximum possible distance.
The IUPAC name of the compound having the formula 
3-butene-1-yne
1-butyn-3-ene
but-1-yne-3-ene
but-1-yne-3-ene
The stability of carbanions in the following
is in the order of
(1) > (2) > (3) > (4)
(2) > (3) > (4) > (1)
(4) > (2) > (3) > (1)
(4) > (2) > (3) > (1)
The general molecular formula, which represents the homologous series of alkanols is:
CnH2nO2
CnH2nO
CnH2n+1O
CnH2n+1O
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