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Yashi Mishra
Subject: Chemistry
, asked on 1/4/18
Correct answer is 1. Give reason and show all the steps of rearrangement in other 3 options
Q15. In which of the following dehydration by conc. H
2
SO
4
no rearrangement is favourable ?
Answer
1
Yashi Mishra
Subject: Chemistry
, asked on 1/4/18
Correct answer is 2. Give reason showing all the steps of the reaction
Q.22
Answer
1
Yashi Mishra
Subject: Chemistry
, asked on 1/4/18
Correct answer is 2. Give reason and show all the steps
Correct answer is 2. Give reason and show all the steps
M
g
2
C
3
+
H
2
O
→
A
→
N
a
B
→
C
:
C
H
3
B
r
T
h
e
i
n
c
o
r
r
e
c
t
s
t
a
t
e
m
e
n
t
f
o
r
C
i
s
1. Compound
C
is
C
H
3
-
C
≡
C
-
C
H
3
2.
C
gives positive tollens test.
3.In compund
C
all four carbon are linearly present
4. compound
C
on ozonolysis gives diketone
Answer
1
Yashi Mishra
Subject: Chemistry
, asked on 31/3/18
Correct answer is 3. Give reason why only in it e1 cb mechanism is used and not others
Answer
1
Yashi Mishra
Subject: Chemistry
, asked on 31/3/18
Why is cyclohexane more stable than cyclopentane?
Answer
3
Yashi Mishra
Subject: Chemistry
, asked on 31/3/18
What will be the number of monochloro derivatives for hexane, 2methylpentane and 3methylpentane? Show their structures also along with positions of chlorine in them
Answer
1
Ashutosh Kumar
Subject: Chemistry
, asked on 29/3/18
Please solve Q25(ii)(b) after or.
25.OR (ii)(b) But-2-yne to cis but-2-ene
Answer
2
Vivek Bisht
Subject: Chemistry
, asked on 23/3/18
What is nascent oxygen and also please give it's molecular formula.
Answer
1
Abhishek V.
Subject: Chemistry
, asked on 23/3/18
How to identify whether the resonance structure is having +R or -R effect?
Answer
1
Erw Trjerth
Subject: Chemistry
, asked on 19/3/18
Q. Arrange the following cations in the increasing order of their stability. Justify
C
H
3
C
+
H
2
,
C
H
3
3
C
+
,
C
H
3
2
C
+
H
,
C
+
H
3
Answer
1
Erw Trjerth
Subject: Chemistry
, asked on 19/3/18
Give equations for
Answer
1
Erw Trjerth
Subject: Chemistry
, asked on 19/3/18
Solve this:
Answer
1
Sudhanshu Singh
Subject: Chemistry
, asked on 16/3/18
(ii) An alkene 'A' contains three C-C, eight C-H
σ
-bonds and one C-C
π
-
bond. 'A' on ozonolysis gives two moles of an aldehyde of molar mass 44. Write the structure and IUPAC name of 'A'. Write the equation of its ozonolysis.
Answer
1
Pragnil Savjani
Subject: Chemistry
, asked on 13/3/18
define nitrobenzene acetylation
Answer
1
Erw Trjerth
Subject: Chemistry
, asked on 10/3/18
What are the important chapters for annual exam chemistry? Under each chapter what are the important parts?
Answer
1
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What are you looking for?
Q15. In which of the following dehydration by conc. H2SO4 no rearrangement is favourable ?
Q.22
1. Compound is
2. gives positive tollens test.
3.In compund all four carbon are linearly present
4. compound on ozonolysis gives diketone
25.OR (ii)(b) But-2-yne to cis but-2-ene
Q. Arrange the following cations in the increasing order of their stability. Justify