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Pseudo halides are anions having resembl...

Pseudo halides are anions having resemblance with halide ions. Group I metals can form salts with pseudo halides. Pseudo halogens can acts as ligands and form coordinate complexes. Their hydrides are weakly acidic and can be prepared in analogous way as halogen hydrides are prepared. Azides, cyanides, selonocyanides are example of pseuda halides.
Cyanide, `CN^-` is a pseudo hafide. When cyanogen is heated with alkali solution, the product are:

A

HCN , `H_2O`

B

`NH_3 , (NH_4)_2CO_3`

C

`NaCN, NaOCN`

D

`HCOONa, NH_3`

Text Solution

Verified by Experts

The correct Answer is:
C
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Pseudo halides are anions having resemblance with halide ions. Group I metals can form salts with pseudo halides. Pseudo halogens can acts as ligands and form coordinate complexes. Their hydrides are weakly acidic and can be prepared in analogous way as halogen hydrides are prepared. Azides, cyanides, selonocyanides are example of pseuda halides. (CN)_2 when react with Na metal, the product is:

Pseudo halides are anions having resemblance with halide ions. Group I metals can form salts with pseudo halides. Pseudo halogens can acts as ligands and form coordinate complexes. Their hydrides are weakly acidic and can be prepared in analogous way as halogen hydrides are prepared. Azides, cyanides, selonocyanides are example of pseuda halides. When NaCN reacts with H_2SO_4 , the products are:

CN is pseudo-halide,when cyanogens are heated with alkali,the products are:

How alkali metal halides can be prepared?

In complex hydrides, hydride ions act as ligand and are coordinated to metal ions. These hydrides are good reducing agents. Which of the following hydrides is not a complex hydride ?

Complexes with halide ligands are generally: