CBSE
Multiple Choice QuestionsWhich one of the following is used for the estimation of hardness of water:
E.D.T.A
Dimethyl glyoxime
Ethylene diamine
Triphenyl phosphine
In the complex [Co(en)2Cl2 ] Br, the co-ordination number and oxidation state of cobalt are
6 and +1
6 and +3
3 and +3
4 and +2
Intramolecular hydrogen bonding is present is:
nickel dimethyl glyoximate
anti-pyridine-2-carboxaldoxime
maleic acid monoanion
All of the above
The total number of possible isomers of the complex compound [CuII(NH3)4][PtIICl4] is:
3
6
5
4
What are the spin only magnetic moments (in BM) for Ni (II) ion in square planar arid octahedral geometry, respectively?
0 and 2.83
2.83 and 2.83
O and 1.73
O and O
The coordination number of Fe[Fe(CN)6]4- , [Fe(CN)6]3- and [FeCl4]- respectively:
6 , 3 , 3
6 , 4 , 6
6 , 6 , 4
2 , 3 , 3
Least coordination number is shown by
Co2(CO)8
Mn2(CO)10
[Fe(en)2NH3]
[Cr(OH)3(NH3)3]
The crystal field splitting for Cr3+ ion in an octahedral field increases for ligands I- , H2O , NH3 , CN- and the order is :
I- < H2O < NH3 < CN-
CN- < I- < H2O < NH3
CN- < NH3 < H2O < I-
NH3 < H2O < I- < CN-
Assertion : Co[Hg(SCN)6] and Hg [Co(SCN)6] are isomers.
Reason : SCN- is a stronger ligand as compared to NCS-.
If both assertion and reason are true and reason is the correct explanation of assertion
If both assertion and reason are true but reason is not the correct explanation of assertion
If assertion is true but reason is false.
If both assertion and reason are false
The solution of the complex [Cu(NH3)4]SO4 in water:
will give the test of Cu2+ ions
will give the test of NH3
will give the test of ions
will not give the tests of any of the above species
