Hydrocarbons Test

Result

Hydrocarbons Test - 26

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Weekly Quiz Competition

Question 1
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Direction (Q. Nos. 1 - 8) This section contains 8 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONLY ONE option is correct.
Q. Predict major product in the following reaction.

A

B

C

D
Question 2
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What is the major organic product in the following reaction?

A

B

C

D
Question 3
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Ethyl benzene on heating with Cl₂ gives A(C₈H₉CI). A on reaction with alcoholic KOH gives B (C₈H₈). Compounds A and 6 are, respectively

A

B

C

D
Question 4
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A
Fittig reaction

B
Wurtz’s-Fittig reaction

C
Ullmann reaction

D
Wurtz’s reaction

Solution

The correct answer is option B
Wurtz - Fittig reaction:
Aryl halide and alkyl halide couple in presence of sodium metal / dry ether to form alkyl benzene.
For example, bromobenzene reacts with methyl bromide in presence of sodium. dry ether to form toluene.
C₆H₆ - Br + CH₃ - Br + 2Na(dry ether)------> C₆H₅ - CH₃ + 2NaBr
Question 5
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Which of the following is not a product of the reaction of benzene with CH₃Cl and AlCl₃?

A
Toulene

B
Isopropyl benzene

C
O-xylene

D
P-xylene

Solution

p-xylene is not a product of reaction of benzene with CH₃Cl and AlCl₃. Toulene, isopropyl benzene and O-xylene are the products of such reaction.
Question 6
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What is the major product of the following reaction?

A

B

C

D
Question 7
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Predict major product of the reaction below.

A

B

C

D
Question 8
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Provide the appropriate sequence of reagents that can bring about the following transformation.

A
CH₃CI/AICI₃ then conc.HNO₃/conc.H₂SO₄ then KMnO₄/NaOH

B
cone. HNO₃ /conc.H₂SO₄ then CH₃CI/AICI₃ then KMnO₄/NaOH

C
CH₃CI/AICI₃ then KMnO₄/NaOH then conc.HNO₃/conc.H₂SO₄

D
conc.H₂SO₄ /conc.HNO₃ then CH₃COCI/AICI₃ then KMnO₄/NaOH

Solution

The correct answer is Option A.