p-Block elementsHard

Question

Cyanogen gas is obtained in the reaction

Options

A.CuSO4(aq) + KCN →
B.K4 [Fe(CN)6]
C.CH3CN + H2O
D.CH3CONH2P2O5

Solution

Among the given options, only CuSO4(aq.) and KCN react to form an unstable copper (II) cyanide which redidly decomposes to give copper (I) cyanide and cyanogen.
SO2CuSO4 (aq) + 4KCN → 2Cu(CN)2 + 2K24
2Cu(CN)2 → 2CuCN+ (CN)2
                                        Cyanigen

Create a free account to view solution

View Solution Free
Topic: p-Block elements·Practice all p-Block elements questions

More p-Block elements Questions

Red phosphorus can be prepared from white phosphorus by :...Which reaction cannot give anhydrous AlCl3 ?...Maximum number of compounds are known in the case of :...Assertion : Nitrogen and Oxygen are the main components in the atmosphere but these do not react to form oxides of nitro...Nitrogen is obtained by the thermal decomposition of :...