If two compounds have the same empirical formula but different molecular formulae, they must have
Different percentage composition
Different molecular weights
Same viscosity
Same vapour density
Sodalime test is used to detect the following element in an organic compound ?
C
H
N
S
An organic compound contains C = 40% O = 53.3% and H = 6.60% . The empirical formula of the compound is
CH2O
CHO
CH4O2
C2H2O
Which of the following statement is wrong?
Using Lassaigne's test nitrogen or sulphur present in an organic compound can be tested.
Using Beilstein's test the presence of halogen in a compound can be tested.
Lassaigne's test fails to identify nitrogen in diazo compound.
In the estimation of carbon an organic compound is heated with CaO in a combustion tube.
Anthracene is purified by
Filtration
Crystallization
Distillation
Sublimation
The IUPAC name of the compound C6H5COCl is
Benzoyl chloride
Benzene chloro ketone
Benzene carbonyl chloride
Chlorophenyl ketone
The alkene that exhibits geometrical isomerism is
Propene
2 – methyl propene
2 – butane
2 – methyl - 2 – butane
Arrange the carbanions, , in order of their decreasing stability
The kind of valency that exists in CaH2 and C2H2 is
Electrovalency in CaH2 and covalency in C2H2
Electrovalency in both
Covalency in CaH2 and electrovalency in C2H2
Covalency in both
