Chemical Process
Hydrogen gas is not produced commercially (for nitrogeneous fertiliser manufacture) by

Electrolysis of water
Its cryogenic separation from coke oven gas
Steam reforming of naphtha
Iron-steam reaction

ANSWER DOWNLOAD EXAMIANS APP

Chemical Process
Pasteurisation of milk means

Removal of fatty and albuminous substance from it
Killing of organisms present in it by heating it at controlled temperature without changing its natural characteristics
Inhibiting the growth of micro-organisms without killing them
None of these

ANSWER DOWNLOAD EXAMIANS APP