Most abundant organic compound in nature?

Related Mcqs:

1. The indicator used for the the estimation of the organic matter or organic carbon is;_________?

   A. Mixed indicator
   B. Diphenylamine indicator 
   C. Both a and b
   D. None of the above

   Submitted by: Shafiq Rehman

2. Soils that have more than 20% organic matter are termed as organic soils. These are also called:________?

   A. Peat soil
   B. solonchalk soil
   C. Muck soil
   D. Both a and c

   Submitted by: Shafiq Rehman

3. Walkley and blacks method of organic matter determination allows recovery of ______ ℅ organic carbon content:

   A. 44 ℅
   B. 45 ℅
   C. 33℅
   D. None of the above

   Submitted by: Shafiq Rehman

4. Walkley and Blacks method of organic matter determination allows recovery of _____% organic carbon content:

   A. 74 %
   B. 54 %
   C. 62.5 %
   D. 34%

   Submitted by: Shafiq Rehman

5. Soil Organic Matter (SOM) which consists of about _______ % organic carbon plays a vital role by providing macro & micro nutrients:

   A. 72 %
   B. 58%
   C. 62 %
   D. Al of the above

   Submitted by: Shafiq Rehman

6. Organic matter decomposes rapidly in Pakistani soils because of ____________ conditions, that is why our soils generally have < 1% organic matter:

   A. High temperature
   B. Alkaline
   C. Both a & b
   D. None of a & b

   Submitted by: Shafiq Rehman

7. A controlled oxidation process by which all organisms ultimately obtain the energy stored in organic compound is known as_______________?

   A. Oxidation
   B. Transportation
   C. Respiration
   D. Both a & b

8. Most abundant mineral in the earth crust is______________________?

   A. N-Feldspar
   B. Feldspar
   C. S-Feldspar
   D. Amplubole

9. Which silica mineral is present in soil in abundant quantity____________________?

   A. Quartz
   B. Smectite
   C. Gypsum
   D. All the above

10. The most abundant metal in the earth’s crust and toxic to plants in low concentration is____________________?

    A. Mo
    B. Al
    C. Fe
    D. All the above