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In case of R, S configuration the group ...

In case of R, S configuration the group having highest priority is

A

`-NO_(2)`

B

`-NH_(2)`

C

`-CN`

D

`-OH`

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The correct Answer is:
D
In case of R, S configuration, the group having highest priority is - OH Atoms with higher atomic number are placed at higher priorities. Thus, the correct sequence of priority among the gien options will be
`-OHgt-NO_(2)gt-NH_(2)-CN`
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