The hottest region of Bunsen flame shown in the figure below is:
region 2
region 3
region 4
region 4
Identify the compound that exhibits tautomerism
2-Butene
Lactic acid
2-Pentanone
2-Pentanone
The distillation technique most suited for separating glycerol from spent-lye in the soap industry is:
fractional distillation
steam distillation
distillation under reduced pressure
distillation under reduced pressure
Which one of the following is the correct statement?
Boric acid is a protonic acid
Beryllium exhibits coordination number of six
Chlorides of both beryllium and aluminium have bridged chloride structures in solid phase
Chlorides of both beryllium and aluminium have bridged chloride structures in solid phase
Presence of nitrogen in which among the following compounds can not be detected by Lassaigne method?
Hydrazine
Aniline
p-toluidine
Picric acid
The IUPAC name of neopentane is
2-methylbutane
2, 2-dimethylpropane
2-methylpropane
2-methylpropane
Which branched chain isomer of the hydrocarbon with molecular mass 72u gives only one isomer of mono substituted alkyl halide?
Tertiary butyl chloride
Neopentane
Isohexane
Isohexane
The electrophile, E⊕ attacks the benzene ring to generate the intermediate σ-complex. Of the following, which σ-complex is of lowest energy?
