• question_answer A bottle of ammonia and a bottle of dry hydrogen chloride connected through a long tube are opened simultaneously at both ends, the white ammonium chloride ring first formed will be            [IIT 1988] A)                 At the centre of the tube             B)                 Near the hydrogen chloride bottle C)                 Near the ammonia bottle             D)                 Throughout the length of the tube

$N{{H}_{4}}Cl$ ring will first formed near the $HCl$ bottle because rate of diffusion of $N{{H}_{3}}$is more than that of $HCl$ because ${{M}_{N{{H}_{3}}}}:{{M}_{HCl}}=17:36.5)$. SO $N{{H}_{3}}$will reach first to the $HCl$bottle & will react there with $HCl$to form $N{{H}_{4}}Cl$ ring