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
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
B.
sublimation
The mixture of sand and iodine can be separated by sublimation process. In this mixture, iodine is when heated it changes to gas without undergoing its liquid state.