MCQ
The proton and neutron are collectively called as
- ADeutron
- BPositron
- CMeson
- ✓Nucleon
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Assertion $(A) :$ A simple distillation can be used to separate a mixture of propanol and propanone.
Reason $(R) :$ Two liquids with a difference of more than $20^{\circ} \mathrm{C}$ in their boiling points can be separated by simple distillations.
In the light of the above statements, choose the most appropriate answer from the options given below:
Statement $-I :$ Retardation factor $\left( R _{ f }\right)$ can be measured in meter/centimeter.
Statement $-II :$ $R _{ f }$ value of a compound remains constant in all solvents.
Choose the most appropriate answer from the options given below