Groups like \( \mathrm{CN} \&[-\mathrm{O}-\ddot{\mathrm{N}}=\mathrm{O}] \) possess two nucleophi....

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Groups like \( \mathrm{CN} \&[-\mathrm{O}-\ddot{\mathrm{N}}=\mathrm{O}] \) possess two
P
nucleophilic centre and are called ambident nucleophiles. Actually cyanide group is hybride of two contributing structures and therefore can act as nucleophile in two different ways \( [\hat{\mathrm{C}}=\mathrm{N} \longrightarrow \mathrm{C}=\mathrm{N}] \) . Similarly nitrite ion also represents an ambident nucleophile with two different points of linkage [O-
\[
\ddot{\mathrm{N}}=\mathrm{O} \text { ] }
\]

Incorrect statement
\[
\mathrm{R}-\mathrm{X} \xrightarrow[\mathrm{AgCN}]{\mathrm{KCN}}
\]
(1) \( \mathrm{KCN} \) is predominentely ionic in nature
(2) \( \mathrm{AgCN} \) is mainly covalent in nature
(3) In \( \mathrm{AgCN} \), carbon is the donor atom
(4) In \( \mathrm{AgCN} \) nitrogen is the donor atom


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