Class 11Chemistry8-3.Organic Chemistry : Purification and characterizationPurification of Organic Compounds
EasyWhat is the characteristic of $R_f$ value?
- AIt is variable for a given compound.
- BIt is definite and constant for a given compound under specific conditions.
- CIt depends only on the amount of substance.
- DIt is always equal to $1$.
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Similar Questions
Methods used for purification of organic compounds are based on:
Using the given figure,the ratio of $R_f$ values of sample $A$ and sample $C$ is $x \times 10^{-2}$. The value of $x$ is . . . . . . . .
Table: Paper chromatography of Samples
| Component | Distance from base line (cm) |
| :--- | :--- |
| Sample $A$ | $5.0$ |
| Sample $B$ | $6.5$ |
| Sample $C$ | $10.0$ |
| Solvent front | $12.5$ |
Table: Paper chromatography of Samples
| Component | Distance from base line (cm) |
| :--- | :--- |
| Sample $A$ | $5.0$ |
| Sample $B$ | $6.5$ |
| Sample $C$ | $10.0$ |
| Solvent front | $12.5$ |
The principle of column chromatography is
If dichloromethane $(DCM)$ and water $(H_2O)$ are used for differential extraction,which one of the following statements is correct?
DifficultJEE MAIN 2019
View SolutionGlycerol boils at $290\,^oC$ with slight decomposition. Impure glycerin can be purified by:
Medium
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