Potassium is kept & transported under ___________________ ?

Related Mcqs:

1. Solvay process is not used for the manufacture of potassium carbonate, because of the reason that potassium bicarbonate ?

   A. Is prone to thermal decomposition
   B. Has high water solubility and is unstable
   C. Is soluble in ammonium chloride and potassium chloride solution
   D. All A , B. and C.

2. Yellow phosphorus is transported under____________________?

   A. Air
   B. Water
   C. Nitrogen
   D. Helium

3. During the absorption of HCl gas in water (to produce liquid HCl), the gas is kept above dew point to__________________?

   A. Increase the rate of absorption
   B. Avoid corrosion
   C. Reduce the cooling water circulation rate
   D. None of these

4. Widely used method for the conditioning of boiler feed water is the ___________________?

   A. Cold lime process
   B. Coagulation
   C. Hot-lime soda process
   D. Sequestration

5. Salt is added in the kettle during soap manufacture to separate ___________________?

   A. Soap from lye
   B. Glycerine from lye
   C. The metallic soap
   D. The unsaponified fat from soap

6. Bio-degradable detergents ___________________?

   A. Can be readily oxidised
   B. Pose problem in sewerage plant
   C. Have an isoparaffinic structure
   D. Should not be used as it spoils the cloth

7. Type of glass used in optical work is the ___________________ glass?

   A. Soda-lime
   B. Fibre
   C. Lead
   D. Borosilicate

8. Caprolactam (a raw material for nylon-6 manufacture) is produced from ___________________?

   A. Phenol
   B. Naphthalene
   C. Benzene
   D. Pyridine

9. Calcareous & argillaceous materials are used in the manufacture of ___________________?

   A. Lead
   B. Cement
   C. Carbon disulphide
   D. None of these

10. Percentage of uranium in Carnotite ore found in Jadugoda (Jharkhand) is about ___________________?

    A. 0.1 to 0.5
    B. 1 to 5
    C. 5 to 10
    D. 15 to 25