also
a) A deep red vapour is evolved
b) The vapour when passed in to NaOH solution gives a yellow solution of Na2CrO4
is it a multiple correct type???
Which of the following statement is correct when a mixture of NaCl + K2Cr2O7 is gently warmed with Conc. H2SO4?
a) A deep red vapour is evolved
b) The vapour when passed in to NaOH solution gives a yellow solution of Na2CrO4
c) Chlorine gas is evolved
d) Chromyl Chloride is formed
Please answer Gals and Guys......
also
a) A deep red vapour is evolved
b) The vapour when passed in to NaOH solution gives a yellow solution of Na2CrO4
is it a multiple correct type???
The Answer will be......
a) A deep red vapour is evolved
K2Cr2O7+ 4NaCl + 6H2SO4 → 2CrO2Cl2(A Deep Red Vapour) + 2KHSO4 + 4NaHSO4 + 3H2O
a)...b)...d) are correct this is Chromyl Chloride test for Cl-
also........
b) when the Vapour passed through the solution of NaOH it gives the yellow solution Na2CrO7
multiple answers are a,b,d..... but I think the colour should have been orange....this q is in OP Agarwal too....