Who discovered benzene?

BHC (Benzene hexachloride) is made by the chlorination of benzene

A

Which is an addition reaction

B

Which is a substitution reaction

C

In absolute dark

D

In presence of sunlight

Isopropyl benzene produced by alkylation of benzene with propylene is known as

A

Neoprene

B

Cumene

C

Gelatin

D

Mercaptans

Chlorination of benzene is done to produce benzene hexachloride (a pesticide) in a photochemical reactor lined with

A

Karbate

B

Lead or glass

C

Fireclay bricks

D

PVC

Who among the following discovered benzene?

A

John Dalton

B

Newton

C

Priestley

D

Michael Faraday

Benzene + HNO3 →60° CConc.H2SO4 BenzeneNO2 + H2O বিক্রিয়াটিতে HNO3 এর ভূমিকা কি

A

Base

B

Catalyst

C

Acid

D

Indicator

যদি ইথাইল বেনজিনকে KMnO4 এর সাথে তাপ দেওয়া হয়, তবে নিচের কোনটি উৎপন্ন হয়? (Which of the following is yielded, if ethyl benzene is heated with KMnO4?)

A

বেনজিন (Benzene)

B

বেনজোয়িক এসিড (Benzoic acid)

C

টলুইন (Toluene)

D

ইথেন (Ethane)

Aryl benzene sulphonate (ABS) is a

A

Detergent

B

Plasticiser for unsaturated polyester

C

Starting material for the synthesis of glycerine

D

Coating ingredient for photographic film

The most popular and common detergent i.e., alkyl benzene sulfonate (ABS) is a/an __________ detergent.

A

Cationic

B

Anionic

C

Amphoteric

D

Semi polar

Cumene (isopropyl benzene) is made by

A

Oxidation of napthalene

B

Propylene alkylation of benzene

C

Polymerisation of a mixture of benzene & propylene

D

None of these

Presence of non-biodegradable substances, like alkyl benzene sulphonate (ABS) from the detergents in polluted water stream causes

A

Fire hazards

B

Explosion hazards

C

Persistent foam

D

Depletion of dissolved oxygen

Who discovered benzene?

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