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Sandra Saju
Subject: Chemistry
, asked on 9/3/18
Please help with this question no links please
(a) Account for the following:
(i) CH
3
CHO is more reactive than CH
3
COCH
3
towards reaction with HCN.
(ii) There arc two - NH
2
groups in semicarbazidc (H
2
NNHCONH
2
). However, only one is involved in the formation of semicarbazone.
Answer
3
Sandra Saju
Subject: Chemistry
, asked on 9/3/18
Please help with this question. Mention the chemical reaction.
Q. Write the products formed when ethanol reacts with the following reagents
(i)
C
H
3
M
g
B
r
and then
H
3
O
+
(ii) Zn-Hg/conc.HCl
(iii)
C
6
H
5
C
H
O
in the presence of dilute NaOH
Answer
1
Prerna Varshney
Subject: Chemistry
, asked on 9/3/18
Conversion in not more than two steps
Ethanal to butanal
Answer
3
Chaitanya Kapoor
Subject: Chemistry
, asked on 9/3/18
As.oh is.electron donationg.grp so.we.know.acidity would decrease so due.to.ortho effecr first.one is correct.how meta came before benzoic acid as meta one is.less strong than benzoic acid please explain this.order
Answer
1
Rugma M
Subject: Chemistry
, asked on 23/2/18
convert 1-bromobutane to butan-1-ol
Answer
2
Anushka Ranaut
Subject: Chemistry
, asked on 22/2/18
Convert acetic acid to propane 1,3 dioic acid
Answer
1
Laieeqa
Subject: Chemistry
, asked on 21/2/18
Benzaldehyde to 3-phenylpropan-1-ol
Answer
1
Laieeqa
Subject: Chemistry
, asked on 21/2/18
Solve this:
Gave reasons:
a) The
α
-hydrogen atoms of aldehydes and ketones are acidic in nature.
b) carboxylic acid does not give reactions of carbonyl group.
c) CH2=CH-COOH is more acidic than CH
3
CH
2
-COOH
Answer
1
Laieeqa
Subject: Chemistry
, asked on 21/2/18
Answer
Answer
1
Laieeqa
Subject: Chemistry
, asked on 21/2/18
Answer
b
)
W
h
y
p
K
a
o
f
F
-
C
H
2
-
C
O
O
H
i
s
l
o
w
e
r
t
h
a
n
t
h
a
t
o
f
C
l
-
C
H
2
-
C
O
O
H
.
Answer
2
Laieeqa
Subject: Chemistry
, asked on 21/2/18
Solve this :
1. A and B are two functional isomers of compound C
3
H
6
O, on heating with NaOH and I
2
, isomer B forms yellow precipitate. Write the formulae of A and B.
Answer
1
Ketul
Subject: Chemistry
, asked on 21/2/18
??
Answer
1
Kurian J
Subject: Chemistry
, asked on 20/2/18
W
h
a
t
a
r
e
t
h
e
p
r
o
d
u
c
t
s
f
o
r
m
e
d
i
n
t
h
e
f
o
l
l
o
w
i
n
g
r
e
a
c
t
i
o
n
s
?
Answer
2
Ashlesha
Subject: Chemistry
, asked on 18/2/18
how does on oxidation of original compound led to dec in no of c from the alkane prt which became from c
2
h5 to
c
ooh.??
Answer
1
Tithi
Subject: Chemistry
, asked on 17/2/18
How are the major and minor products determined in the given reaction?
Answer
2
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What are you looking for?
(a) Account for the following:
(i) CH3CHO is more reactive than CH3COCH3 towards reaction with HCN.
(ii) There arc two - NH2 groups in semicarbazidc (H2NNHCONH2). However, only one is involved in the formation of semicarbazone.
Q. Write the products formed when ethanol reacts with the following reagents
(i) and then
(ii) Zn-Hg/conc.HCl
(iii) in the presence of dilute NaOH
Ethanal to butanal
Gave reasons:
a) The -hydrogen atoms of aldehydes and ketones are acidic in nature.
b) carboxylic acid does not give reactions of carbonyl group.
c) CH2=CH-COOH is more acidic than CH3CH2-COOH
1. A and B are two functional isomers of compound C3H6O, on heating with NaOH and I2, isomer B forms yellow precipitate. Write the formulae of A and B.