Haloalkanes & Haloarenes Test

Result

Haloalkanes & Haloarenes Test - 16

Score
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Rank
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TIME Taken - -

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Weekly Quiz Competition

Question 1
4 / -1

n – Propyl bromide on treatment with ethanolic potassium hydroxide produces

A
Propane

B
Propene

C
Propyne

D
Propanol

Solution
Question 2
4 / -1

Which of the following is called Sandmeyer reaction?

A

B

C

D

Solution
Question 3
4 / -1

When CH₃CHClCH₂CH₃ is treated with alcoholic KOH, the major product is

A
CH₃ – CH = CH – CH₃

B
CH2 = CH – CH₂ – CH₃

C
CH₃ – CHOH – CH₂ – CH₃

D
CH₃ – CH₂ – CH₂ – CH₃
Question 4
4 / -1

A compound which does not give iodoform test on treatment with alkali and iodine is

A
Ethanol

B
Acetone

C
Diethyl ketone

D
Isopropyl alcohol
Question 5
4 / -1

Which does not give iodoform reaction?

A
PhCOCH₃

B
CH₃OH

C
CH₃CH₂OH

D
CH₃CHO
Question 6
4 / -1

Silver benzoate reacts with bromine to form

A

B

C

D
C₆H₅Br

Solution
Question 7
4 / -1

Replacement of Cl of chlorobenzene to give phenol requires drastic conditions but chlorine of 2, 4 –dinitrochlorobenzene is readily replaced.This is because

A
NO₂ makes the ring electron rich at ortho and para positions

B
NO₂ withdraws e^– from meta – position

C
NO₂ donates e^– at m – position

D
NO₂ withdraws e^– from ortho/para – positions.
Question 8
4 / -1

In the following groups : OAc(I), – OMe(II), –OSO₂Me (III),–OSO₂CF₃(IV) the order of leaving group ability is

A
I > II > III > IV

B
IV > III > I > II

C
III > II > I > IV

D
II > III > IV > I
Question 9
4 / -1

Which of the following compounds gives a positive iodoform test ?

A
Pentanal

B
1 – Phenylethanol

C
2 – Phenyethanol

D
3 – Pentanol
Question 10
4 / -1

When chlorine is passed through propene at 400^oC, which of the following is formed ?

A
PVC

B
Allyl chloride

C
Vinyl chloride

D
1, 2 – Dichloroethane

Solution