no
The given reaction is:The given reaction is an SN2 reaction. In this reaction, CN−acts as the nucleophile and attacks the carbon atom to which Br is attached. CN−ion is an ambident nucleophile and can attack through both C and N. In this case, it attacks through the C-atom.
no
Nucleophiles which can attack through two different sites are called ambident nucleophiles. For example, cyanide ion is a resonance hybrid for its structure. It can attack either through carbon to form cyanides or through N to form isocyanides or carbylamines.
The given reaction is:The given reaction is an SN2 reaction. In this reaction, CN−acts as the nucleophile and attacks the carbon atom to which Br is attached. CN−ion is an ambident nucleophile and can attack through both C and N. In this case, it attacks through the C-atom.
KCN + RCl ------------>RCN + KCl : this is in aqueous medium. here K+ ions displace the less electropositive R+ ions and hence the rxn is a simple rxn of alkyl halides. AgCN + RCL --------------> R=N-->C + AgCl : but this rxn is in alcoholic medium. N & C ions can both donate a lone pair of electrons. such groups are called ambident nucleophile