Question

Compare basic strength of the above compounds:

• A. $A>B>C$
• B. $B>A>C$
• C. $C>A>B$
• D. $C>B>A$

Answer 1

The correct option is C $C>A>B$

$A$ and $B$ have a delocalized negative charge and hence the negative charge is less on the atom causing less reactivity with an acid.
$A$ has less delocalized charge and thus more reactive than $B$.
$C$ has a completely localized charge i.e., highest reactivity with acid. Hence, the order of basic strength is $C>A>B$.