The solvent or mixture of solvents used for separation of compounds is called____________________?

Related Mcqs:

1. Solvent used in separation of biomolecules is _______________?

   A. Acetone
   B. Trichloroacetic acid
   C. Ether
   D. Alcohol

   Submitted by: Safeullah Bullo

2. Homogeneous mixture of two or more than two compounds is called__________________?

   A. solution
   B. compound
   C. radical
   D. ion

3. Cement is a mixture of so many compounds roasted in rotary kiln. Which substances has greater percentage ?

   A. Lime (CaO)
   B. Silica (SiO2)
   C. Alumina (Al2O3)
   D. Magnesia (MgO)

4. The most appropriate method for separating a large quantity of a mixture of nonvolatile, nonpolar organic compounds would be__________?

   A. Distillation
   B. Extraction
   C. Gas chromatography
   D. Column chromatography

   Submitted by: Muhammad Ali Kunbhar

5. Which of the following solvents would best facilitate an SN2 substitution reaction?

   A. Water
   B. Hexane
   C. Dimethylflormamide
   D. Ethanol

   Submitted by: Muhammad Ali Kunbhar

6. Which of the following technique is used for the separation of insoluble particles from liquids ?

   A. Filtration
   B. Crystallization
   C. Solvent extraction
   D. Chromatography

7. Separation of a solid from its hot saturated solution by cooling is called__________________?

   A. vapourization
   B. solvent extraction
   C. filtration
   D. crystallization

8. Ratio of the amount of solute in organic and aqueous solvent is________________?

   A. Retardation factor
   B. Distribution co-efficient
   C. Distribution in aqueous solution
   D. All statements are wrong

9. In solvent extraction ether is used to separate products of organic synthesis from________________?

   A. water
   B. iodine
   C. hydrochloric acid
   D. gases

10. In crystallization if the solvent is inflammable then direct heating is________________?

    A. needed
    B. avoided
    C. depends on temperature
    D. crystallization does not involve heating