Chemical Process
RDX (an explosive), which is more sensitive but less toxic than TNT, is chemically

Trinitro benzene
Trinitro resorcinol
Cyclo tetramethylene tetranitramine
Cyclo trimethylene trinitramine

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Chemical Process
Pasteurisation of milk means

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
Removal of fatty and albuminous substance from it

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