64. 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(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
Solution : Rate of diffusion `alpha 1//sqrt()m` <br> `m_(NH_3) = 17, m_(HCl)= 36.5` <br> `gamma_(NH_3) gt gamma_(HCl)` <br> Hence white fumes first formed near hydrogen chloride.