A co-ordination complex, compound of cobalt has the molecular formulae containing five ammonia molecules, one nitro group and two chloride atoms for one cobalt atom. One mole of this compound produces three mole ions in an aqueous solution on reacting with excess of `AgNO_3`, `AgCl` precipitate. The ionic formula for this complex would be:A. (a) `[Co(NH_3)_5(NO_2)Cl_2`B. (b) `[Co(NH_3)_5Cl][Cl(NO_2)]`C. (c) `[Co(NH_3)_4(No_2)Cl][(NH_3)Cl]`D. (d) `[CO(NH_3)_5][(NO_2)_2Cl_2]`

A co-ordination complex, compound of cobalt has the molecular formulae

1.	A co-ordination complex, compound of cobalt has the molecular formulae containing five ammonia molecules, one nitro group and two chloride atoms for one cobalt atom. One mole of this compound produces three mole ions in an aqueous solution on reacting with excess of `AgNO_3`, `AgCl` precipitate. The ionic formula for this complex would be:A. (a) `[Co(NH_3)_5(NO_2)Cl_2`B. (b) `[Co(NH_3)_5Cl][Cl(NO_2)]`C. (c) `[Co(NH_3)_4(No_2)Cl][(NH_3)Cl]`D. (d) `[CO(NH_3)_5][(NO_2)_2Cl_2]`
Answer» Correct Answer - A The most probable complex which gives three moles ions in aqueous solution may be `[Co(NH_3)_5NO_2]Cl_2` because it gives two chlorine atoms on ionisation. `[Co(NH_3)_5NO_2]Cl_2rarr[Co(NH_3)_5NO_2]^(2+)+2Cl^(-)`

Discussion

No Comment Found

Related InterviewSolutions

The coordination number of `Ni^(2+)` is 4. `NiCl_(2) + KCN ("excess") rarr A ("cyano comples")` `NiCl_(2) + conc. HCl ("excess") rarr B ("chloro complex")` Predict the magnetic nature of A and B.A. Both are diamagneticB. A is diamagnetic and B is paramagnetic with one unpaired electronC. A is diamagnetic and B is paramagnetic with two unpaired electronsD. Both are paramagnetic
The coordination number of `Ni^(2+)` is 4. `NiCl_(2) + KCN ("excess") rarr A ("cyano comples")` `NiCl_(2) + conc. HCl ("excess") rarr B ("chloro complex")` The hybridisation of A and B areA. `dsp^(2), sp^(3)`B. `sp^(3), sp^(3)`C. `dsp^(2), dsp^(2)`D. `sp^(3)d^(2), d^(2) sp^(3)`
Why are low spin tetrahedral complexes not formed ?A. for tetrahedral complexes , the CFSE is lower than pairing energyB. for tetrahedral complexes , the CFSE is higher than pairing energyC. electrons do not go to `e_(g)` in case of tetrahedral complexesD. tetrahedral complexes are formed by weak field ligands only .
The complex that violates the EAN:A. (a) potassium ferrocyanideB. (b) nickel carbonylC. (c) potassium ferricyanideD. (d) cobalt (III) hexaammine chloride
Which of the following is the strongest field ligand?A. (a) `CN^-`B. (b) `NO_2^-`C. (c) `NH_3`D. (d) `en`
Among the following , metal carbonyls, the C-O bond is strongest :A. `[Mn(CO)_(6)]^(+)`B. `[Cr(CO)_(6)]`C. `[V(CO)_(6)]^(-)`D. `[Ti(CO)_(6)]^(2-)`
Which of the following is the strongest field ligand?A. (a) `NO_2^(-)`B. (b) `CN^(-)`C. (c) `NH_3`D. (d) `En`
Choose the correct statement regarding complex `CuF_(6)^(-4)`A. Chelation always increase stabilityB. CFSE have strong effect on stabilityC. `Fe("dipy")_(3)^(+3)` is unstableD. All of these
Strongest C-O bond is present inA. `Fe(CO)_(5)`B. `Mn(CO)_(6)^(+)`C. `Cr(CO)_(6)`D. `V(CO)_(6)^(-)`
STATEMENT-1: Coordination isomerism occurs when both the cations and anions are complexes . and STATEMENT-2: Oxidation state of central metal ion in both coordination spheres is always equal.A. Statement-1 is True , Statement-2 is True , Statement-2 is a correct explanation for Statement-1B. Statement-1 is True , Statement-2 is True , Statement-2 is NOT a correct explanation for Statement-1C. Statement-1 is True , Statement-2 is FalseD. Statement-1 is False , Statement-2 is True

Discussion

No Comment Found

Related InterviewSolutions

Reply to Comment