While diluting acid always add_____________________?

Related Mcqs:

1. Acid soil contain pH____________________?

   A. <7
   B. >7
   C. >7.0
   D. 8.5

2. Acid soils of the world’s arable comprise up to_____________________?

   A. 40%
   B. 30%
   C. 58%
   D. 20%

3. Who gave the defination of humic acid ?

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

4. Humic acid is soluble in______________________?

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

5. Humic acid is soluble in____________________?

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

6. Although some acid soils do exist in the northern mountainous regions of Pakistan (Mansehra, Sawat, Dir). Almost all cultivated soils of the country are ________________, with high base saturation and low organic matter content (generally less than 1%)?

   A. Alkaline
   B. Very much acidic
   C. Calcareous
   D. both A & C

   Submitted by: Shafiq Rehman

7. Nitrogen & sulphur dioxide liberate from motor vehicles & industries. Nitrogen & Sulphur gases dissolve in the water vapour of atmosphere & form nitric & sulphuric acid. This rain water falls on soil as__________ & contaminates soil also:

   A. Acid rain
   B. Neutral rain
   C. Both A & B
   D. None of the above

   Submitted by: Shafiq Rehman

8. The cellular structure which always disappears during mitosis is___________________?

   A. Plastids
   B. Protoplasm
   C. Membrane
   D. Nuclear and membrane

9. The soil quality is always deteriorated by:_________?

   A. Erosion & pollution
   B. Waterlogging & salinization
   C. Nutrient mining
   D. All of these

   Submitted by: Shafiq Rehman

10. The process that convert glucose to pyruvic acid is____________________?

    A. Citric cycle
    B. Glycolysis
    C. Fermentation
    D. Calvin-Benson cycle