Extraction of humic substance can be done by______________________?

Related Mcqs:

1. Humus generally refers to the decomposed organic residues which have undergone a series of degradation and synthesis cycles. The humic substances consist of a series of highly acidic, yellow to black coloured, high molecular weight compounds __________________, which can be separated using different extraction procedures:

   A. Hymatomelanic  acid & Humin
   B. Humic acid & Fulvic acid
   C. both A & B
   D. None of these

   Submitted by: Shafiq Rehman

2. Who gave the defination of humic acid ?

   A. Gapon
   B. Felbeek
   C. Neir
   D. Liekig

3. Humic acid is soluble in______________________?

   A. Acid
   B. Alkali
   C. Both a & b
   D. Distilled water

4. Humic acid is soluble in____________________?

   A. Acid
   B. Alkali
   C. Both a & b
   D. None of the above

5. Kaolinite can be identified by______________________?

   A. Spectrophotometer
   B. Boiling
   C. X-ray diffraction
   D. Breaking

6. Plant parts useful for extraction of opium from papaver saminiferaim are__________________?

   A. Young seedings
   B. Old leaves
   C. Unripe fruit
   D. Ripened fruit

7. Solution containing molecular weight of a substance in gram per liter of a solution is known as______________________?

   A. Normal
   B. Molal
   C. Molar
   D. None of the above

8. The number of calories of heat required to change the temperature of one Kg of a substance is called____________________?

   A. Heat action
   B. Molar heat
   C. Specified heat
   D. None of the above

9. The term used to denote both sensation and the substance is________________________?

   A. Taste
   B. Aroma
   C. Flavor
   D. All the above

10. Some substance are added intentionally to foods for the purpose of marketing them more profit able are known as_____________________?

    A. Food contamination
    B. Food adulterants
    C. Food additives
    D. All the above