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Arrange the following monomers in order ...

Arrange the following monomers in order of decreasing ability of undergo cationic polymerisation.
`(I)` `CH_(2)=CH-C_(6)H_(4)(NO_(2))`
`(II)` `CH_(2)=CH-(C_(6)H_(4)(CH_(3))`
`(III)` `CH_(2)=CH-C_(6)H_(4)(OCH_(3))`

A

`IgtIIgtIII`

B

`IIgtIgtIII`

C

`IIIgtIIgtI`

D

`IgtIIIgtII`

Text Solution

Verified by Experts

The correct Answer is:
C
More stable is carbocation more is ability to undergo cationic polymerisation.
`+I` and `+R` nature of `-OCR_(3)` stabilizes carbocation.
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