HARDMCQ SINGLENEET ChemistryInorganic Chemistryp -Block Elements (group 15-18)Achiever Section

NH4Cl is preferred to NaCl for the preparation of HCl by the action of concentrated H2SO4 because

A.NH4Cl is not expensive

B.NH4Cl is very volatile

C.NH4HSO4 formed during the reaction is insoluble

D.NH4HSO4 formed during the reaction is soluble✓ Correct

Explanation

The reaction for the preparation of HCl is given below- below 200 2 4 4 4 2 4 4 4 . 2 . oC NaCl conc H SO NaHSO HCl NH Cl conc H SO NH HSO HCl -> -> Here, 4 NaHSO produced is insoluble whereas 4 4 NH HSO is soluble. Therefore, 4 NH Cl is preferred over NaCl .

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