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

Related Mcqs:

1. Crystallization does not involve_______________?

   A. heating B. sublimation C. cooling D. vaporization...

2. The use of CaCl2 and PCl5 in the process of crystallization is as a____________________?

   A. oxidizing agent B. reducing agent C. drying agent D. colouring agent...

3. Water of crystallization can be removed by________________?

   A. drying B. heating C. evaporation D. All of the above...

4. The residue obtained after the crystallization of sugar from concentrated sugar cane juice is called__________________?

   A. Mother liquor B. Filterate C. Extract D. Molasses...

5. 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...

6. A technique of partition chromatography in which the solvent is in a pool at the bottom of container_______________?

   A. Adsorption chromatography B. Ascending chromatography C. Radial chromatography D. Descending chromatography...

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

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

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

   A. Stationary phase B. Mobile phase C. Dynamic phase D. Static phase...

9. A substance having very high vapour pressure at its melting point on heating will show_______________?

   A. Melting B. Sublimation C. Decomposition D. Condensation...

10. Solvent used in separation of biomolecules is _______________?

    A. Acetone B. Trichloroacetic acid C. Ether D. Alcohol Submitted by: Safeullah Bullo...