Most abundant mineral in the earth crust is______________________?

Related Mcqs:

1. 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

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

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

3. The kaolininte is a layer silicate clay mineral, it is 1:1 type of mineral with___________________?

   A. 3-15 meq/100g CEC
   B. 40 meq/100g CEC
   C. 50 meq/100g CEC
   D. None of the above

4. Fine-graned rocks formed on earth crust are called____________________?

   A. Intensive igneous rock
   B. Extrusive rock
   C. Sedimentary rock
   D. Plutonic

5. Potassium (K) occurs as a constituent of the earth’s crust in the proportion of_________?

   A. 23 %
   B. 2.3 %
   C. 17 %
   D. 1.7 %

   Submitted by: Shafiq Rehman

6. Oxygen and Silicon together comprise approximately ______ %of the earth crust?

   A. 64 %
   B. 79 %
   C. 75 %
   D. 73 %

   Submitted by: Shafiq Rehman

7. The relative abundance of three types of rocks ( igneous-metamorphic- sedimentary) in the earth’s crust is_________?

   A. 12.5 % -12.5 % – 75%
   B. 64.7 % – 27.4 % – 7.9 %
   C. none of A & B
   D. 7.9% – 27.7 % – 64.4

   Submitted by: Shafiq Rehman

8. Which element is found highest in earth crust?

   A. Aluminum
   B. Silicon
   C. Sodium
   D. None of the above

   Submitted by: Shafiq Rehman

9. Most abundant organic compound in nature?

   A. Cellulose
   B. Hemicellulose
   C. Lignin
   D. All of these

   Submitted by: Shafiq Rehman

10. Formula used for the calculation of sodium absorption ratio is______________________?

    A. SAR=Na / [(Ca+Mg)1/2] Na x 2
    B. SAR=Na / CEC x 100
    C. SAR=Na / CEC x 100
    D. None of these