`HBr//HI` are prepared by heating

Explain why HBr and HI can't be prepared by heating NaBr and Nal with conc. H_2SO_4 ?

HCI and HF are prepared by heating their salt (NaCI and CaF_(2)) with conc. H_(2)SO_(4) but HI and HBr cannot he prepared by similar reaction because HBr and HI have

HCI and HF are prepared by heating their salt (NaCI and CaF_(2)) with conc. H_(2)SO_(4) but HI and HBr cannot he prepared by similar reaction because HBr and HI have

HI can not be prepared by heating Nal with concentrated H_2SO_4 . Give the method which is preferred for the preparation of HI.

Butanenitrile may be prepared by heating _____

Propane nitrile can be prepared by heating ......

Butyronitrile may be prepared by heating