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Byju's Answer
Standard XII
Chemistry
Classification of Alcohols
Which of the ...
Question
Which of the following is known as ethyl carbinol?
A
O
H
|
C
H
2
−
O
H
|
C
H
2
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B
C
H
3
C
H
2
C
H
2
O
H
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C
C
H
3
C
H
2
C
H
O
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D
C
H
3
−
C
H
2
−
O
H
|
C
H
−
C
H
2
C
H
3
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Solution
The correct option is
B
C
H
3
C
H
2
C
H
O
In carbinol system, methyl alcohol
(
C
H
3
O
H
)
is called carbinol while other alcohols are named as alkyl derivatives of it.
So, ethylcarbinol is propane
−
1
−
o
l
.
C
2
H
5
−
C
H
2
−
O
H
Hence, option
(
C
)
is correct.
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Similar questions
Q.
Which of the following would you predict to be the stronger acid?
(a) Benzoic acid or para-nitrobenzoic acid
(b)
C
H
3
−
C
H
2
−
C
H
2
−
O
H
or
C
H
3
−
C
H
=
C
H
−
O
H
(c)
C
H
3
−
C
H
=
C
H
−
C
H
2
−
O
H
or
C
H
3
−
C
H
=
C
H
−
O
H
Q.
(A)
C
H
3
−
C
|
C
H
3
H
−
C
H
2
−
C
H
2
−
O
H
(B)
C
H
3
−
O
H
|
C
|
C
H
3
−
C
H
2
−
C
H
3
(C)
C
H
3
C
H
3
|
C
H
−
O
H
|
C
H
−
C
H
3
The order of given alkanols
A
,
B
,
C
in their reactivity towards acid catalysed dehydration is:
Q.
In which of the following pairs of carbocations, the first carbocation is more stable than the second?
(i)
C
H
2
=
C
H
−
+
C
H
2
and
C
H
2
=
C
H
−
C
H
2
−
+
C
H
2
(ii)
C
H
3
−
N
H
−
+
C
H
2
and
+
C
H
2
−
O
H
(iii)
C
H
3
−
O
−
C
H
2
−
+
C
H
2
and
C
H
2
−
O
−
+
C
H
2
(iv)
C
H
3
−
+
C
H
−
C
H
2
C
H
2
C
H
3
and
C
H
3
C
H
2
−
+
C
H
−
C
H
2
C
H
3
Q.
Identify the type of the following reaction of carbon compounds.
a. CH
3
-CH
2
-CH
2
-OH → CH
3
-CH
2
-COOH
b. CH
3
-CH
2
-CH
3
→ 3CO
2
+ 4H
2
O
c. CH
3
-CH = CH -CH
3
+ Br
2
→ CH
3
-CHBr - CHBr -CH
3
d. CH
3
-CH
3
+ Cl
2
→ CH
3
-CH
2
-Cl + HCl
e. CH
3
-CH
2
-CH
2
-CH
2
-OH → CH
3
-CH
2
-CH=CH
2
+ H
2
O
f. CH
3
-CH
2
-COOH + NaOH → CH
3
-CH
2
-COO - Na
+
+ H
2
O
g. CH
3
-COOH + CH
3
-OH → CH
3
-COO- CH
3
+ H
2
O
Q.
Give the IUPAC name of the following compounds:
C
H
3
−
C
H
2
−
O
H
|
C
H
−
C
H
2
−
C
H
2
−
C
H
2
−
C
H
2
−
C
H
2
−
C
H
2
−
C
H
2
−
C
H
2
−
C
H
3
|
C
H
−
C
H
3
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