Which one of the following elements is least likely to be found in commercial fe

Which one of the following elements is least likely to be found in commercial fertilisers?

Which of the following is caused by the higher concentration of Nitrogen and Pho

Which of the following is caused by the higher concentration of Nitrogen and Phosphorous ?

If the sewage is fully oxidized, the nitrogen is in the form of

If the sewage is fully oxidized, the nitrogen is in the form of

If all bullets could not be removed from gun shot injury of a man, it may cause

If all bullets could not be removed from gun shot injury of a man, it may cause poisoning by

Extensively used nitrogenous fertilizer is

Extensively used nitrogenous fertilizer is

The nuclear particle having no mass and no charge, but only spin is

The nuclear particle having no mass and no charge, but only spin is

The orientation of an atomic orbital is governed by

The orientation of an atomic orbital is governed by

‘Atomic theory’ of matter was given by

‘Atomic theory’ of matter was given by

The most suitable unit for expressing nuclear radius is :

The most suitable unit for expressing nuclear radius is :

The total energy of revolving electron in an atom

The total energy of revolving electron in an atom

Which one of the following has greatest mass ?

Which one of the following has greatest mass ?

The scientist who experimentally proved the existence of positron is

The scientist who experimentally proved the existence of positron is