Boron in soil has been considered micronutrient for_________________?

Related Mcqs:

1. Boron is non metal while other elements of IIIA group are metals. This is because______________?

   A. it has small size B. it has high nuclear charge C. it forms molecular addition compounds D. all of the above...

2. Boron is non-netal whereas A1 is metal. It is due to_______________________?

   A. Small size B. High nuclear charge C. Both A and B D. No authorized justification yet...

3. One of the outstanding features of boron is its ability to form__________________?

   A. Molecular addition compounds B. Molecular crystals C. Semiconductors D. Ionic compounds...

4. The type of hybridisation of boron in diborane is______?

   A. Sp- hybridisation B. Sp2- hybridisation C. Sp3- hybridisation D. Sp3d2- hybridisation Submitted by: Muhammad Ali Kunbhar...

5. The fertility of the soil is improved by________________?

   A. Rotation of the crops B. Adding lime to the acid salts C. Adding manure and growing legumes D. All...

6. Addition of urea to the soil is ____________ reaction?

   A. endothermic B. exothermic C. both a and b D. no heat energy is involved...

7. Gypsum is applied to the soil as a source of________________?

   A. Ca and P B. S and P C. Ca and S D. we could not apply...

8. Soil pollution is caused by:_________?

   A. Aerosol B. Ozone C. Acid rain D. PAN Submitted by: Fahad Mehsud...

9. Which of the following is not considered as an intermolecular force between molecules ?

   A. Coordinate covalent bonds B. Hydrogen bonds C. Debye forces D. London dispersion forces...

10. Potential of SHE is considered as__________________?

    A. zero B. unity C. constant D. multiple of 1...