Final answer:
To separate N, N-Dimethylanilline and Anthracene, you can use the process of sublimation. For Benzaldehyde and Stearic Acid, you can use solvent extraction.
Step-by-step explanation:
To separate the mixture of N, N-Dimethylanilline and Anthracene, you can use the process of sublimation. Anthracene is a solid that can undergo sublimation, which means it can change from a solid directly into a vapor without going through the liquid phase. N, N-Dimethylanilline is a liquid substance. By heating the mixture, the anthracene will sublime, while the N, N-Dimethylanilline will remain as a liquid. The vapors of anthracene can then be collected and condensed back into solid form, resulting in the separation of the two substances.
To separate the mixture of Benzaldehyde and Stearic Acid, you can use the process of solvent extraction. Benzaldehyde is soluble in organic solvents like ethyl acetate or methanol, while Stearic Acid is not miscible in these solvents. By adding an organic solvent to the mixture and shaking it, the Benzaldehyde will dissolve in the solvent, while the Stearic Acid will remain in its solid form. The two substances can then be separated by decanting or filtration, as the Stearic Acid will not dissolve in the solvent.