What is exchange energy of electron in chemistry?  When two electrons with unidirectional spin in sp...

GREEN CHEMISTRY Examples of green chemistry solvents or safer solvents  Solvents are consumed in large quantities in many chemical ...

Q.Why helium(He2) molecule does not exist ? The existence of He2 molecule can be explain by molecular orbital theory.According to   ...

Molecular orbital (M.O) theory  : Introduction:  Based on wave mechanics, Hund and Mulliken published their molecular orbital theory in...

What is singlet and triplet carbene in chemistry? What is carbene in chemistry? This is the first member of alkenes. Carbene...

Q. compare the dipole moment of pyrrole and furan ? Oxygen is more electronegative than nitrogen. Consequently the lone pair on ...

What are green chemistry principles? Definition of Green chemistry  Green chemistry is an important part of chemistry and chemica...

Why Compounds of Cr (II ) are strong reduci ng- explain ? Cr(II) state is not very stable.A few compounds which are known get readily ox...

Everyday life chemistry We can not move for a moment without help of chemistry. Chemistry is the very important part of our daily life ....

Q.Why   Fe, Co and Ni shows ferromagnetic properties ? Generally , the magnetic properties of elements arises due to the present of...

  Magnetic properties of transition metals. The magnetic moment of an electron is partly due to its spin motion and partly due to i...