Main component of bone ash is _________________?

Related Mcqs:

Color of nitric acid is light yellow due to the presence of__________________?

A. NO B. NO2 C. N2H5 D. NH3...

Nitrogenous fertiliser is required__________________?

A. During the early stage of growth to promote development of stem and leaves B. For accelerating fruit formation in later stage of growth C. To lessen the effect of excessive potash application D. None of these...

Red phosphorous is changed into white phosphorous by______________________?

A. Heating in presence of light B. Melting under pressure C. Vaporisation followed by condensation D. None of these...

A Potassic fertiliser contains 50% K2O. It could be _________________?

A. Potassium sulphate B. Potassium chloride C. A mixture of NaCl + KCl D. None of these...

Vetrocoke solution is_________________?

A. A mixture of K2CO3 and As2O3 B. K2SO4 C. A mixture of Na2CO3 and As2O3 D. Na2SO4...