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Tardigrade
Question
Chemistry
Which of the following is called Baeyer’s reagent?
Q. Which of the following is called Baeyer’s reagent?
2979
200
AIIMS
AIIMS 1994
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A
Alkaline
K
M
n
O
4
solution
B
Saturated
K
M
n
O
4
solution
C
Acidic
K
M
n
O
4
solution
D
Neutral
K
M
n
O
4
solution
Solution:
Alkaline
K
M
n
O
4
solution is called Baeyer’s reagent and is used for characterisation of olefinic bond in the compound. Purple colour of
K
M
n
O
4
disappears and brown ppt. due to
M
n
O
2
appears.