Haloalkanes and Haloarenes Test 17

Result

Haloalkanes and Haloarenes Test 17

Score
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Rank
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TIME Taken - -

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Weekly Quiz Competition

Question 1
1 / -0

Read the following road map carefully

A
Both the ethers obtained by the two routes have opposite but equal optical rotation.

B
One of the ether is obtained as a recemic mixture.

C
Step II & III both are SN2 reaction and both have inversion.

D
Step II has inversion but step III has retention

Solution

The correct answer is option A
Both the ethers obtained by the two routes have opposite but equal optical rotation
One of the ether is obtained as a racemic mixture
Step II & III both are S2N reaction and both have inversion Step II has inversion but step III has retention
Question 2
1 / -0

A compond A has the molecular formula C5H9CI. It does not react with bromine in crabon tetrachloride. On treatement with strong base it produces a single compound B. B shas a molecular formula C5H8 and reacts with bromine in carbon tetrachloride. ozonolysis of B produces a compound cC which has a molecular formula C5H8O2. Which of the following structures is that of A?

A

B

C

D

Solution

By the question (B) is correct answer.
Question 3
1 / -0

A
Ph–O–SO₂OMe

B
PhOMe

C
PhOSO₂OPh

D
PhMe

Solution
Question 4
1 / -0

Which of the following statement is correct

A

B

C

D

Solution
Question 5
1 / -0

A

B

C

D

Solution

S_N2’ mechanism
Question 6
1 / -0

Product is :

A

B

C

D

Solution
Question 7
1 / -0

Product is :

A

B

C

D

Solution
Question 8
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In the reaction The product is -

A

B

C

D

Solution

Example of pinacoi-pinacolone rearrangement
Question 9
1 / -0

A
R

B
S

C
R,S both

D
None of these

Solution

Given compound is in configuration due to walden inversion on attack by we get 'R' configuration
Question 10
1 / -0

A

B

C

D
none of these

Solution

Example of pinacol pinacolone rearrangement.
Question 11
1 / -0

The products of hydrolysis of

A
HOCH₂CH₂CH₂CH₂ CHO + CH₃CHO

B
HOCH₂CH₂CH₂CH₂OH + CH₃CHO

C
HOCH₂CH₂CH₂CH₂CHO + C₂H₅OH

D
HOCH₂CH₂CH₂CH₂CH₂OH + C₂H₅OH

Solution
Question 12
1 / -0

The product A is :

A

B

C

D

Solution
Question 13
1 / -0

(CH₃)₃CCI + (CH₃)₃CO–K+ → Product

A
S_N Product will be more

B
E₂ Product will be more

C
both will be same

D
None of these

Solution

Stericaily hindered base leads to elimination product.
Question 14
1 / -0

Neopentyl iodide is treated with aq. AgNO₃ solution, a yellow precipitate is formed along with other compound which is

A

B

C

D

Solution
Question 15
1 / -0

The major end product of the following reaction is

A

B

C

D

Solution
Question 16
1 / -0

The major product P of the following reaction is

A

B

C

D
None of these
Question 17
1 / -0

The product of following reacting is

A

B

C

D

Solution
Question 18
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Which can not be the product

A

B

C

D
A and B both
Question 19
1 / -0

The correct order of SN2 E2 ration for the % yield of product of the following halide is

(R) CH₃ — CH₂ — I

A
R > S > Q > P

B
R > Q > S > P

C
P > R > S > Q

D
Q > P > R > S

Solution

The correct answer is Option A
Least hindered halides give the fastest SN₂ reaction as the hindrance increases. As the hindrance increases, the occurrence of SN₂ reaction decreases.
Question 20
1 / -0

The poduct in the given reaction is

A

B

C

D

Solution