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Byju's Answer
Standard XII
Chemistry
Grignard Reagent for Alkenes
The treatment...
Question
The treatment of
C
H
3
M
g
X
with
C
H
3
−
C
≡
C
−
H
produces:
A
C
H
3
−
C
≡
C
−
C
H
3
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B
C
H
3
−
C
H
3
|
C
=
C
H
2
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C
C
H
2
=
C
=
C
H
2
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D
C
H
4
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Solution
The correct option is
D
C
H
4
Grignard reagent abstracts the acidic proton as it acts as a base when an acidic hydrogen is present. The terminal alkyne hydrogen is mildly acidic.
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Similar questions
Q.
C
H
3
−
C
H
2
−
C
H
2
−
C
H
2
−
C
H
3
|
C
|
C
H
3
−
C
H
2
−
C
H
2
−
O
H
H
+
−
−
→
Δ
(
A
)
(
m
a
j
o
r
)
Product (A) is:
Q.
Wittig reaction :
C
H
3
−
C
H
3
|
C
=
O
C
H
2
=
P
P
h
3
D
M
S
O
−
−−−
→
C
H
3
−
C
H
3
|
C
=
C
H
2
+
P
h
3
P
=
O
Q.
Give the I.U.P.A.C names of the following:
CH3 - CH3
CH3 - CH2 - CH3
CH3 - CH2 - CH2 - CH3
CH3 - CH2 - CH2 - CH2 - CH3
CH2 = CH2
CH3 - CH = CH2
CH3 = CH2 - CH = CH2
CH3 - CH2 - CH2 - CH = CH2
CH =_ CH
CH3 - C =_ CH
CH3 - CH2 - C =_ CH
CH3 - CH2 - CH2 - C =_ CH
CH3 - OH
CH3 - CH2 - OH
CH3 - CH2 - CH2 - OH
CH3 - CH2 - CH2 - CH2 - OH
CH3 - CH2 - CH2 - CH2 - CH2 - OH
H - CHO
CH3 - CHO
CH3 - CH2 - CHO
CH3 - CH2 - CH2 - CHO
CH3 - CH2 - CH2 - CH2 - CHO
H - COOH
CH3 - COOH
CH3 - CH2 - COOH
CH3 - CH2 - CH2 - COOH
CH3 - CH2 - CH2 - CH2 - COOOH
Q.
Name the following compounds.
a) CH3-C(triplebond)C-CH3
b) CH3 - CH2 - CH2 - C (triplebond) C -CH2 - CH2 - CH2 - CH2 - CH3
Q.
Write IUPAC names of the compounds given below: i)CH3-C=O-CH3. ii) CH3-C=O-CH2-CH3 iii) CH3-CH2-C=O-CH2-CH3 iv) CH3-CH2-C=O-CH2-CH3
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Standard XII Chemistry
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