Geometrical shapes of the complexes (p),(q),(r) formed by the following reactions respectively are : Cu^(2+)(aq)+KCN(aq)("excess")to"complex"(p) Co^(2+)(aq)+KNO_2(s)+H^+ (aq)to"complex"(q) Zm^(2+)(aq)+NaOH(aq)("excess")to"complex"(r)

Geometrical shapes of the complexes (p),(q),(r) formed by the followin

1.	Geometrical shapes of the complexes (p),(q),(r) formed by the following reactions respectively are : Cu^(2+)(aq)+KCN(aq)("excess")to"complex"(p) Co^(2+)(aq)+KNO_2(s)+H^+ (aq)to"complex"(q) Zm^(2+)(aq)+NaOH(aq)("excess")to"complex"(r)
Answer» Tetrahedral , octahedral and SQUARE PLANAR tetrahedral , octahedral and tetrahedral Square planar , octahedral and tetrahedral Octahedral, octahedral and tetrahedral Solution :(A)`Cu^(2+)(AQ)+4CN^(-)(aq)("excess")to[Cu(CN)_4]^(3-)`(aq)(p) `[Cu(CN)_4]^(3-)-3d^(10)` electron configuration and , therefore , `sp^3` hybridisation and tetrahedral geometry. (B)`Co^(2+)(aq)+3K^(+)(aq)+7NO_2^(-)(s)+2H^(+)(aq)toK_3[Co(NO_2)_6]darr (Q)+NOuarr+H_2O` `[Co(NO_3)_6]^(3-)-3d^(6)` electron configuration and , therefore , `d^2sp^3` hybridisation and octahedral geometry. (C )`Zn^(2+)(aq)+4OH^(-)(aq)("excess")to[Zn(OH)_4]^(2-)(r)` `[Zu(OH)_4]^(2-)3d^10` electron configuration and , therefore , `sp^3` hybridisation and tetrahedral geometry.