The chemical name of limestone is? 

In India all executive powers of the Union ultimately lies in the- 

In atom, neutron was discovered by – 

State Land Reform is under which schedule of the Indian Constitution? 

Spraying of DDT on crops causes pollution of 

How many schedules are there in our Constitution? 

The atoms, in which the number of Protons is same but the number of neutrons is different, are known as – 

The atomic nucleus was discovered by