Coordination Compounds - Online Test
Q1. Which among the following will not show geometrical isomerism?
Answer : Option A
Explaination / Solution:
[Co(en)3]3+ all ligands are same its symmetrical so doesnot exists as geometrical isomers.
Q2. Which of the following complexes does not obey the EAN rule?
Answer : Option C
Explaination / Solution:
23+12=35 EAN is not followed.
Q3. What is used as the complexing agent in volumetric analysis of ions like [Mg2+ and Ca2+
Answer : Option B
Explaination / Solution:
EDTA is hexadentate ligand so it forms stable chelate complex with metal ions.
Q4. Which of the following cation does not form an ammine complex with excess of ammonia?
Answer : Option B
Explaination / Solution:
Na+ is s block element so doesnot form ammine complex.
Q5. Blue solution of CuSO4 becomes darker when treated with ammonia because
Answer : Option C
Explaination / Solution:
Ammonia forms stable complex with Cu2+
Q6. According to Werner’s theory, the secondary valences of the central atom correspond to its
Answer : Option D
Explaination / Solution:
According to Werner’s theory CN is equal to secondary valency.
Q7. K3CoF6 is high spin complex. What is the hybrid state of Co atom in this complex?
Answer : Option B
Explaination / Solution:
CN is 6 so octahedral complex with hybridization sp3d2 .
Q8. Tetraaminecopper(II) ion is a square planar complex with one unpaired electron. According to valence bond theory the hybrid state of copper should be
Answer : Option C
Explaination / Solution:
Tetraaminecopper(II) ion is square planar so hybridization is dsp2
Q9. The IUPAC name of KAl(SO4)2.12H2O is
Answer : Option C
Explaination / Solution:
This is double salt so name is written in sequential manner.
Q10. The IUPAC name of AlCl3.4(EtOH) is
Answer : Option D
Explaination / Solution:
This is double salt so name is written in sequential manner.
