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
The IUPAC name of the compound C6H5COCl is
Benzoyl chloride
Benzene chloro ketone
Benzene carbonyl chloride
Chlorophenyl ketone
Sodalime test is used to detect the following element in an organic compound ?
C
H
N
S
Arrange the carbanions, , in order of their decreasing stability
An organic compound contains C = 40% O = 53.3% and H = 6.60% . The empirical formula of the compound is
CH2O
CHO
CH4O2
C2H2O
Anthracene is purified by
Filtration
Crystallization
Distillation
Sublimation
The alkene that exhibits geometrical isomerism is
Propene
2 – methyl propene
2 – butane
2 – methyl - 2 – butane
When mixture of potassium cyanate and ammonium chloride is heated, it gives
Urea
Methanamide
Ethanamide
Ethanamine
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.
