1.

Which of the following will give red colour with NaOH ?

Answer»

`R-overset(NH)overset("||")(C)-NO_(2)`
`R-UNDERSET(NO_(2))underset(|)overset(R)overset(|)(C)-NO`
`R_(2)C-NO_(2)`
`R_(3)CONO`.

SOLUTION :`{:(""NOH),("||"),(R-C-NO_(2)):}` is nitrolic ACID and it gives red COLOUR with `NaOH`.


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