1.

Which statement is incorrect

Answer»

Phenol is a weak acid
Phenol is aromatic compound
Phenol liberates `CO_(2)` from `Na_(2)CO_(3)` solution
Phenol is soluble in `NaOH`

Solution :Riemer-Tiemann reaction :

`:. C-C` bond is FORMED.
Hydroboration-oxidation:
`RCH=CR_(2)^(') underset((II) H_(2)O_(2), OH^(-))OVERSET((i) B_(2)H_(6))rarr R-underset(OH)underset(|)(CH)-CHR_(2)^(')`
`:. C-O` bond is formed.
Cannizzaro reaction:
`2RCHO+50% NaOH rarr RCH_(2)OH+RCOONa`
`:. C-OH` and `C=O` bonds are formed.
Reaction of `1^(@)` alcohol by PCC
`RCH_(2)OH underset([O])overset(PC C)rarrRCHO`
`:. C=O` bond is formed.


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