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.
Which of the following statement is wrong ?
Using Lassaigne's test nitrogen and sulphur present in organic compound can be tested
Using Beilstein's test the presence of halogen in a compound can be tested.
In Lassaigne's filtrate the nitrogen present in a organic compound is converted into NaCN
In the estimation of carbon, an organic compound is heated with CaO in a combustion tube
Cis-trans isomers generally :
contain an asymmetric carbon atom
contain double bonded carbon atoms
rotate the plane of polarized light
are enantiomorphs
Which of the following compound is optically active?
1 - butanol
Isopropyl alcohol
Acetaldehyde
2 - butanol