Who introduced pH ?

Who introduced the concept of hybridisation ?

Who introduced 'Ecological pyramids'?

Who introduced elliptical orbits ?

Who introduced magnetic quantum number ?

The scientist who introduced co-ordinate Geometry is

Why does spin quantum number introduced ?

Test tube 'P' contain NaHCO_3 solution. Test tube 'Q' contain lemon juice. On introducing pH paper strips on both of them it is observed that the pH paper turns.

Trigionometry was introduced by ………..

The word " mole " was introduced by whom?

Chromatographic technique was first introduced by ___________.