Chemistry Test 194

Result

Chemistry Test 194

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Weekly Quiz Competition

Question 1
4 / -1

The incorrect order of reactivity is (towards electrophillic addition)

A
1 > 2

B
3 > 1

C
4 > 2

D
4 > 3
Question 2
4 / -1

The correct relative rate of reaction of the given alkenes for any given electrophiles is :

A
I > II > IV > III

B
II > IV > III > I

C
II > III > IV > I

D
IV > I > III > II

Solution
Question 3
4 / -1

A

B

C

D

Solution

It is an electrophilic addition reaction.
Question 4
4 / -1

A

B

C

D
B and C Both
Question 5
4 / -1

Which of the following alcohol will be oxidised most readily by K₂Cr₂O₇ / H₂SO₄ solution ?

A

B

C

D

Solution

The 1º alcohol is most readily oxidised, because the a-H is abstracted in the slow step.
Question 6
4 / -1

The correct order of resonance energy of the compound is :

A
I > II > III > IV

B
I > III > II > IV

C
I > II > IV > III

D
IV > III > II > I

Solution

More number of resonating structures in I as compare to II.
Question 7
4 / -1

A

B

C

D
None Of these

Solution

N-attached ring is more activated towards electrophilic aromatic substitution reaction.
Question 8
4 / -1

A

B

C

D

Solution
Question 9
4 / -1

Phenol on reaction with Br₂ in CS₂ or non-polar aprotric solvent furnishes :

A
2, 4, 6-tribromophenol

B
p-bromophenol

C
o/p-bromophenol

D
m-bromophenol

Solution
Question 10
4 / -1

Among the following which one will show maximum hydration ?

A
CCl₃CHO

B
(CH₃)₃CCO(CH₃)₃

C

D
CH₃COCH₃

Solution

Due to strong –I effects and formation of intramolecular H bonding.