Lassaigne's test is used to detect :
nitrogen and halogens
sodium and halogens
halogens and sulphur
nitrogen, sulphur and halogens
Disymmetric object is one which is:
superimposable on its mirror image
non-superimposable on its mirror image
optically inactive
achiral
Three fused benzene rings are found in:
naphthalene
anthracene
phenanthroline
triphenyl methane
B.
anthracene
Structure of anthracene is,
There are three fused benzene rings in it.
To differentiate between carbon-12, carbon-13 and carbon-14, the instrument that you would use is :
infra-red spectrometer
atomic absorption spectrometer
mass spectrometer
ultraviolet spectrometer
A mixture of sand and iodine can be separated by:
crystallisation
sublimation
distillation
fractionation