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Byju's Answer
Standard XII
Chemistry
Longest Chain Rule
The correct d...
Question
The correct descending order of the priority of the following atoms or group is:
−
C
H
O
,
−
C
H
2
O
H
,
−
C
H
3
,
−
O
H
A
2,4,1,3
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B
1,2,3,4
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C
4,3,2,1
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D
1,4,2,3
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Solution
The correct option is
B
1,4,2,3
The correct descending order of the priority of the following atoms or group is
−
C
H
O
,
−
O
H
,
−
C
H
2
O
H
,
−
C
H
3
Suggest Corrections
2
Similar questions
Q.
Which of the following has highest priority based on atomic number.
CH2OH. (or) . C(CH3)3
CH2-CH2-OH. (or) CH(CH3)2
Q.
The decreasing order of priority for the following functional groups is :
I.
−
C
≡
N
II.
−
C
O
N
H
2
III.
−
O
H
IV.
−
C
H
O
Q.
The priority of groups
O
H
,
C
O
O
H
,
C
H
O
,
O
C
H
3
attached to chiral carbon is in order:
Q.
The priority of groups
O
H
,
C
O
O
H
<
C
H
O
<
O
C
H
3
attached to chiral carbon is in order:
Q.
The correct reactivity order of alcohols towards
H
−
X
will be:
(I)
C
H
2
=
C
H
−
O
H
(II)
C
H
2
=
C
H
−
C
H
2
O
H
(III)
C
H
3
−
C
H
2
−
O
H
(IV)
C
H
3
−
C
H
|
O
H
−
C
H
3
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