Sea weeds are an important source of_________________?

Related Mcqs:

1. Carborundum consists mainly of_________________?

   A. Bauxite
   B. Silicon carbide
   C. Boron carbide
   D. Calcium carbide

2. Mannheim furnace is used in the manufacture of_________________?

   A. Hydrochloric acid
   B. H2SO4 by Chamber process
   C. Calcium carbide
   D. Corundum

3. Chalcopyrite is the main ore of_________________?

   A. Copper
   B. Lead
   C. Tin
   D. Iron

4. L.D. converter is used in the production of_________________?

   A. Pig iron
   B. Steel
   C. Copper
   D. Zinc

5. Platinum is a versatile catalyst for many processes in chemical industries. It is highly prone to be poisoned by the presence of_________________?

   A. Carbon
   B. Arsenic
   C. Lead
   D. Sulphur

6. Gelatine which is a nitrogenous organic protein is obtained by the hydrolysis of_________________?

   A. Collagen
   B. Tannin
   C. Molasses
   D. Carbohydrate

7. Acetone is produced by catalytic dehydrogenation of_________________?

   A. Phenol
   B. Naphthalene
   C. Isopropanol
   D. Ethyl benzene

8. Which of the following is not produced commercially from sea water ?

   A. Magnesium & potassium compounds
   B. Common salt
   C. Bromine
   D. Iodine

9. Separation of fresh water from sea water can be done by the _______________ operation ?

   A. Osmosis
   B. Reverse osmosis
   C. Absorption
   D. Adsorption

10. Sodium chloride content in sea water is about _______________ gms/liter?

    A. 2
    B. 10
    C. 25
    D. 50