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Shreya Choudhary
Subject: Chemistry
, asked on 22/3/18
Solve this:
69 Naphthalene and benzoic acid can be separated from each other best by the method of
(1) Crystallisation (2) Sublimation
(3) Distillations (4) Chromatography
70 Which of the following compound will not give Lassaigne's test for nitrogen?
(1) Azobenzene (2) Hydrazine
(3) Phenylhydrazine (4) Urea
Answer
1
Yashi Mishra
Subject: Chemistry
, asked on 22/3/18
Correct answer is 1. Why is 1 less stable than 3. Explain nicely and do not give any link
Q. Which of the following represents the correct order of stability of the given carbocations?
(1) III > I > II
(2) I > III > II
(3) III > II > I
(4) II > III > I
Answer
2
Yashi Mishra
Subject: Chemistry
, asked on 22/3/18
Correct answer is 2. Name the functional groups
6. In the structure
number of functional groups presents is/are
(l) Two (2) Four
(3) Five (4) Three
Answer
1
Yashi Mishra
Subject: Chemistry
, asked on 22/3/18
Why does homolysis does not take place in other 3. Give reason for all options
Q.1. In which of the following homolytic bond fission takes place?
(1) Alkaline hydrolysis of ethylchloride
(2) Addition of HBr to double bond
(3) Photochlorination of methane
(4) Nitration of benzene
Answer
1
Abhishek V.
Subject: Chemistry
, asked on 21/3/18
Tautomers of C6H6O
Answer
1
Yashi Mishra
Subject: Chemistry
, asked on 20/3/18
Explain why 2 is correct
Q.28. Which of the following is the most acidic in nature?
(1)
(2)
C
H
3
C
O
O
H
(3)
(4)
Answer
1
Yashi Mishra
Subject: Chemistry
, asked on 20/3/18
Q. What is the IUPAC name Of
C
H
3
-
C
-
C
H
2
-
C
≡
N
|
|
O
?
Answer
2
Yashi Mishra
Subject: Chemistry
, asked on 20/3/18
Ethanoic acid and 2 hydroxy ethanal are which type of isomers?
Answer
1
Erw Trjerth
Subject: Chemistry
, asked on 19/3/18
Solve this:
Q. Explain with equation the reason for the fusion of an organic compound with metallic sodium for testing nitrogen, sulphur and halogen.
Answer
1
Erw Trjerth
Subject: Chemistry
, asked on 19/3/18
Solve this:
Answer
1
Pragnil Savjani
Subject: Chemistry
, asked on 15/3/18
alkynes are more acidic than alkanes why
Answer
1
Pragnil Savjani
Subject: Chemistry
, asked on 15/3/18
how would you remove hardness by clark's method and Temporary by Ion exchange method
Answer
1
Pragnil Savjani
Subject: Chemistry
, asked on 15/3/18
give example of disproportion and proportionation reaction
Answer
1
Vriddhi Kuls
Subject: Chemistry
, asked on 15/3/18
Ques 17 (b&c)(below OR)
Answer
1
Vriddhi Kuls
Subject: Chemistry
, asked on 15/3/18
Bond line structure of 2-methyl 2-cyclopropylpropane
Answer
1
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What are you looking for?
69 Naphthalene and benzoic acid can be separated from each other best by the method of
(1) Crystallisation (2) Sublimation
(3) Distillations (4) Chromatography
70 Which of the following compound will not give Lassaigne's test for nitrogen?
(1) Azobenzene (2) Hydrazine
(3) Phenylhydrazine (4) Urea
Q. Which of the following represents the correct order of stability of the given carbocations?
(1) III > I > II
(2) I > III > II
(3) III > II > I
(4) II > III > I
6. In the structure number of functional groups presents is/are
(l) Two (2) Four
(3) Five (4) Three
Q.1. In which of the following homolytic bond fission takes place?
(1) Alkaline hydrolysis of ethylchloride
(2) Addition of HBr to double bond
(3) Photochlorination of methane
(4) Nitration of benzene
Q.28. Which of the following is the most acidic in nature?
(1)
(2)
(3)
(4)
Q. What is the IUPAC name Of ?
Q. Explain with equation the reason for the fusion of an organic compound with metallic sodium for testing nitrogen, sulphur and halogen.