Analytical Chemistry Question 151
Question: When concentrated $ H_2SO_4 $ is added to dry $ KNO_3 $ , brown fumes evolve. These fumes are
[CPMT 1988; IIT 1987]
Options:
A) $ SO_2 $
B) $ SO_3 $
C) $ NO $
D) $ NO_2 $
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Answer:
Correct Answer: D
Solution:
$ 2KNO_3+H_2SO_4\to 2KHSO_4+\underset{\text{(Brown gas)}}{\mathop{2\ NO_2\uparrow }} $
BETA
