Class 11Chemistry8-3.Organic Chemistry : Purification and characterizationPurification of Organic Compounds
MediumGiven below are two statements:
Statement-$I$: Retardation factor $(R_f)$ 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:
Statement-$I$: Retardation factor $(R_f)$ 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:
- AStatement-$I$ is true but statement-$II$ is false.
- BBoth statement-$I$ and statement-$II$ are true.
- CBoth statement-$I$ and statement-$II$ are false.
- DStatement-$I$ is false but statement-$II$ is true.
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Compare the pressure of aniline and water in vapour phase distillation.
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View SolutionThe fragrance of flowers is due to the presence of some steam-volatile organic compounds. These compounds are known as essential oils. At room temperature,these oils are insoluble in water but are miscible with water vapor. Name the suitable method for the extraction of these oils from flowers.
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View SolutionState True or False for the following statements:
$(i)$ The volatile liquid is purified by fractional distillation or simple distillation.
$(ii)$ Two liquids are separated by fractional distillation.
$(iii)$ Liquids with a small difference in boiling points are separated by fractional distillation.
$(iv)$ Liquids with a large difference in boiling points are separated by fractional distillation.
$(i)$ The volatile liquid is purified by fractional distillation or simple distillation.
$(ii)$ Two liquids are separated by fractional distillation.
$(iii)$ Liquids with a small difference in boiling points are separated by fractional distillation.
$(iv)$ Liquids with a large difference in boiling points are separated by fractional distillation.
Medium
View SolutionMatch List-$I$ with List-$II$:
List-$I$ (Mixture) List-$II$ (Separation Technique) $A$. $CHCl_3 + C_6H_5NH_2$ $I$. Steam distillation $B$. $C_6H_{14} + C_5H_{12}$ $II$. Differential extraction $C$. $C_6H_5NH_2 + H_2O$ $III$. Distillation $D$. Organic compound in $H_2O$ $IV$. Fractional distillation
| List-$I$ (Mixture) | List-$II$ (Separation Technique) |
|---|---|
| $A$. $CHCl_3 + C_6H_5NH_2$ | $I$. Steam distillation |
| $B$. $C_6H_{14} + C_5H_{12}$ | $II$. Differential extraction |
| $C$. $C_6H_5NH_2 + H_2O$ | $III$. Distillation |
| $D$. Organic compound in $H_2O$ | $IV$. Fractional distillation |
DifficultJEE MAIN 2023
View SolutionGiven below are two statements:
Statement $I$: Vapours of the liquid with higher boiling point condense before vapours of the liquid with lower boiling points in fractional distillation.
Statement $II$: The vapours rising up in the fractionating column become richer in high boiling component of the mixture.
Statement $I$: Vapours of the liquid with higher boiling point condense before vapours of the liquid with lower boiling points in fractional distillation.
Statement $II$: The vapours rising up in the fractionating column become richer in high boiling component of the mixture.
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