CBSE
Of the following complex ions, which is diamagnetic in nature?
[Ni(CN)4]2-
[CuCl4]2-
[CoF6]3-
[CoF6]3-
The complexes [Co(NH3)6][Cr(CN)6] and [Cr(NH3)6][Co(CN)6] are the examples of which type of which type of isomerism?
Ionisation isomerism
Coordination isomerism
Geometrical isomerism
Geometrical isomerism
The d- electron configurations of Cr3+, Mn2+ , Fe2+, and Co2+ are d4 ,d5, d6 and d7 respectively. Which one of the following will exhibit minimum paramagnetic behaviour?
(At. no. Cr = 24, Mn = 25, Fe =26, Co = 27)
[Fe(H2O)6]2+
[Co(H2O)6]2+
[Cr(H2O)6]2+
[Cr(H2O)6]2+
Which one of the following is an outer orbital complex and exhibits paramagnetic behaviour?
[Ni(NH3)6]2+
[Zn(NH3)6]2+
[Cr(NH3)6]3+
[Cr(NH3)6]3+
Which of the following acids does not exhibit optical isomerism?
Maleic acid
α-amino acids
Lactic acid
Lactic acid
The complex, [Pt (Py)(NH3)BrCl] will have how many geometrical isomers?
4
0
2
2
The sum of coordination number and oxidation number of the metal M in the complex [M(en)2(C2O4)]Cl (where en is ethylenediamine) is
9
6
7
7
Low spin complex of d6 -cation in an octahedral field will have the following energy
(Δo = Crystal field splitting energy in an octahedral field,
P= electron pairing energy)
An excess of AgNO3 is added to 100 mL of a 0.01 M solution of dichlorotetraaquachromium (III) chloride. The number of moles of AgCl precipitate would be
0.001
0.002
0.003
0.003
Red precipitate is obtained when ethanol solution of dimethylglyoxime is added to ammoniacal Ni (II).Which of the following statements is not true?
Red Complex has a square planar geometry
Complex has symmetrical H- bonding
Red complex has a tetrahedral geometry
Red complex has a tetrahedral geometry