Which Indian state has the largest share of the Wastelands in India?

The atoms of Germanium, Arsenic, Selenium and Bromine contain _____ shells.

Give an example of a slat which gives an aqueous solution of pH less than 7.

_____ solution is used to treat a bee sting.

The force that a neutron exerts on a proton inside an atom is:

Weight of an object on the moon is ______ the weight of the object on earth.

The two richest Ecozones of India are 

N Venkatachala, has passed away at the age of 89 belongs to which category?