The cooling of molten urea by air in the tower is called______________________?
prilling evaporation condensation crystallization
prilling evaporation condensation crystallization
Pt ZnO + Cr2O3 Fe in fused mixture of Al2O3 + SiQ2 + MgO All of the above
Ionic crystal Covalent crystal Molecular crystal Any type of crystal
Avogadros law Grahams law of diffusion Joule Thompson effect Daltons law of partial pressure
hydrogen ion hydride ion oxide ion methoxide ion
Pandit Nehru F.M. Lord Wavel Liaquat Ali Khan None of the above
1935 1945 1947 None of these
Diwan Nazim Bakshi none of thes
Nehru Tilak Gandhi none of these
Christopher Columbus Amerigo Vespucci George Washington James Maclison