The exact formula for sodium hexametaphosphate is___________________?

A. [(NaPO6)13]
B. [(NaPO3)13]
C. [(NaPO2)6]
D. None of the above

Related Mcqs:

Addition of sodium hexametaphosphate in soil for determination of soil texture causes__________________?
A. Agregation of soil particles
B. Cementing of soil particles
C. Dispersion of soil particles
D. All the above
The exact chemical formula of DAP fertilizer is___________________?
A. (NH2) HPO4
B. NH4H2PO4
C. NH4H2PO4
D. Both a & c
The exact formula for calculating the base saturation percentage is_____________________?
A. Bas saturation percentage = CA+Mg+Na / CEC x 100
B. Bas saturation percentage = /CEC / CA+Mg+Na x 100
C. Bas saturation percentage = /CEC / CA+Mg x 100
D. None of the above
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
All organism or cell having a chromosome number that is not an exact multiple of the monoploid or basic number is known as___________________?
A. Allopolyploid
B. Autopolyploid
C. Aneuploid
D. Euploid
An organism or cell having a chromosome number that is higher than the exact nultiple of the basic number is known as__________________?
A. Hypoploid
B. Hyperploid
C. Allopolyploid
D. Autopolyploid
The conductivity of a saturation extract is greater 4 dsm-1 an exchangeable sodium percentage (ESP) of less than 15 and the pH is usually less than 8.5 is called as__________________?
A. Saline soils
B. Saline-sodic soils
C. Sodic soils
D. Neutral soils
The lands which are rich in soluble salts and exchangeable sodium:
A. Saline soil
B. Saline-Alkaline
C. Alkaline
D. None of the above

Submitted by: Shafiq Rehman
The chemical formula of urea fertilizer is_______________________?
A. NH₂CONH₂
B. [CO(NH₂)]
C. Both a & b
D. None of the above
C12H12N-NaO8S2 is the chemical formula of ____________________?
A. Activated charcoal
B. Azomethine H
C. Carbonated sodium sulphate
D. None of the above