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which one of the following observations is not tru
Question:
Which one of the following observations is not true when a mixture of KCl, K2Cr2O7 and conc. H2SO4 is warmed carefully?
WBJEE
Updated On:
Apr 26, 2024
(A) A deep red vapour is evolved.
(B) When the vapour is passed into KOH solution, a yellow solution is obtained.
(C) When the yellow solution is acidified with acetic acid and lead acetate solution is added to it, a yellow precipitate is formed.
(D) The red vapour is a mixture of chromyl chloride and chlorine.
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The Correct Option is
D
Solution and Explanation
Explanation:
The red vapour is only chromyl chloride and no chlorine is mixed with it.Thus, (4) is false.
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