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Standard XII
Chemistry
Physical Properties of Alkenes
When cis bute...
Question
When cis butene reacts with X to give a non resolvable product Y. What can X be?
A
B
r
2
water
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B
H
C
O
3
H
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C
Cold alkaline
K
M
n
O
4
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D
All of the above
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Solution
The correct option is
C
Cold alkaline
K
M
n
O
4
cis-2-butene reacts with X to give a non-resolvable product Y. X can be cold alkaline
K
M
n
O
4
.
Hence, the correct option is C.
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Similar questions
Q.
Assertion :Treatment of cis-
2
-butene with cold,dilute and alkaline
K
M
n
O
4
solution gives a meso-
2
,
3
-butanediol. Reason:
M
n
O
−
4
forms a cyclic intermediate with alkene.
Q.
Assertion :
C
i
s
-2-butene gives
m
e
s
o
-2,3-butanediol with dilute alkaline
K
M
n
O
4
solution. Reason: Dilute alkaline
K
M
n
O
4
solution given trans addition with alkenes.
Q.
Addition of
B
r
2
to cis - 2-butene would give a product which is :
Q.
How many isomers
x
of
C
8
H
10
when react with hot alkaline
K
M
n
O
4
only aromatic dicarboxylic acid ? How many isomers
y
of
C
4
H
8
when reacts with hot alkaline
K
M
n
O
4
give carbondioxide?
Sum of
x
+
y
=
?
Q.
cis-2-Butene on reaction with cold dilute
K
M
n
O
4
solution produces:
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