Chemistry Test 141

Result

Chemistry Test 141

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Weekly Quiz Competition

Question 1
4 / -1

An organic compound ‘X’ on treatment with acidified gives a compound ‘Y’ which reacts with and sodium carbonate to form tri-iodomethane. The compound ‘X’ is

A

B

C

D
Question 2
4 / -1

Heating methyl phenyl ether with HI gives

A
Methanol Iodobenzene

B
Methyl iodide Iodobenzene

C
Methyl alcohol Benzyl alcohol

D
Methyl iodide Phenol
Question 3
4 / -1

A
III>IV>I>II

B
I>IV>III>II

C
II>I>III>IV

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

Which of the following is a Riemer-Tiemann reaction

A

B

C

D
None of them
Question 5
4 / -1

Victor Meyer’s test is not given by

A

B

C

D
Question 6
4 / -1

When phenol is treated withe excess bromine water

A
m-Bromophenol

B
o-and p-Bromophenols

C
2,4-Dibromophenol

D
2,4,6-Tribromophenols
Question 7
4 / -1

n-Propyl alcohol and isopropyl alcohol can be chemically distinguished by which reagent

A

B
reduction

C
oxidation with potassium dichromate

D
Ozonolysis
Question 8
4 / -1

Glycerol is treated with excess of HI at room temperature and then with more HI at 426K. The final product obtained is

A
Allyl iodide

B
Isopropyl iodide

C
Propane

D
Propene
Question 9
4 / -1

Phenol reacts with PCl₅ to give mainly

A
C₆H₅Cl

B
C₆Cl₆

C
(C₆H₅)₃PO₃

D
(C₆H₅)₃PO₄

Solution

Phenyl reacts with PCl₅ to give only a small amount of chlorobenzene, the main product is triphenyl phophate, (C₆H₅)₃PO₄, the ester of phosphoric acid. With PCl₃, we get ester of phosphoric acid, (C₆H₅)₃PO₃.
Question 10
4 / -1

In the reaction of phenol with and aqueous NaOH at 70^oC (343 K), the electrophile attacking the ring is

A

B

C

D