Question 1

Synthetic rubber is made by polymerization of

Accepted Answer

Chlroprene

Answer

Vinyl acetate

Answer

Di Vinyl acetate

Answer

acetylene

Question 2

Which gas is used for artificial ripening of fruits

Accepted Answer

Ethyne

Answer

Methane

Answer

Ethane

Answer

Propane

Question 3

The Benzene molecule contains

Accepted Answer

delocalized pi electron cloud

Answer

Two double bonds

Answer

Three double bonds

Answer

one double bond

Question 4

During Nitration of Benzene, the active nitrating agent is

Accepted Answer

$NO_2$

Answer

$ HNO_3$

Answer

$NO_3$

Answer

$NO_2^- $

Question 5

Which one is not a meta-directing group

Accepted Answer

$ NH_2$

Answer

COH

Answer

COR

Answer

COOH

Question 6

Which compound is the most reactive

Accepted Answer

Ethene

Answer

Ethyne

Answer

Benzene

Answer

Ethane

Question 7

Why are alkynes reactive towards electrophylic reagent?

Accepted Answer

Question 8

Benzene is less reactive than alkene. Why?

Accepted Answer

Question 9

Write any four ortho and para directing groups for benzene.

Accepted Answer

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