Coordination Compounds  MCQs

MCQs of Coordination Compounds

Showing 171 to 180 out of 226 Questions
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171.
In [Co(NH3)5Cl]CL2, Cl- ion _____ .
(a) satisfies only primary valency of Co3+
(b) satisfies only Secondary valency of Co3+
(c) satisfies both primary and secondary valencies of Co3+
(d) satisfies only electrical charge of the complex ion
Answer:

Option (c)

172.
Which of the following octahedral complexes releases maximum number of ions on ionization ?
(a) PtCl4 · 6NH3
(b) PtCl3 · 3NH3
(c) PtCl4 · 4NH3
(d) PtCl4 · 2NH3
Answer:

Option (a)

173.
Equimolar aqueous solutions of octahedral complexes and their corresponding expected values of conductivity are given below. Select the correct option. (I) K2PtCl6 (II) PtCl4 · 5NH3 (III) PtCl4 · 2NH3 (IV)PtCl4 · 3NH3
(a) 262,432,96,0
(b) 262,432,0,96
(c) 432,262,0,96
(d) 262,0,96,432
Answer:

Option (b)

174.
Which of the following complexes will give ion in its aqueous solution ?
(a) [Fe(CO)5]
(b) K3 [Fe(CN)6]
(c) Fe4 [Fe(CN6]3
(d) All of the above
Answer:

Option (c)

175.
In thecomplex [Co(en)3]2(SO4)3 ; co-ordination number and oxidation number of the central metal ion are respectively _____ .
(a) 6, +6
(b) 6, +3
(c) 6, -6
(d) 3, +3
Answer:

Option (b)

176.
What is the oxidation state of Cr in [Cr(NH3)4Cl2]+ ?
(a) 0
(b) +1
(c) +2
(d) +3
Answer:

Option (d)

177.
Which is the correct statement according to wrener's theory ?
(a) Primary valency of ionic type (form).
(b) Secondary valency is of ionic type.
(c) Primary and secondary valencies are non-ionic.
(d) Only primary valency is non-ionic.
Answer:

Option (a)

178.
200 ml solution (say) X contains 0.02 mole [Co(NH3)5 Br]Cl2 and 0.02 mole [Co(NH3)5Cl]SO4. If the solution X is reacted with excess of AgNO3 and that of BaCl2, what will be the number of moles of precipitate Y and Z respectively ?
(a) 0.02,0.02
(b) 0.01,0.02
(c) 0.02,0.04
(d) 0.04,0.02
Answer:

Option (d)

179.
What is the secondary valency of Pt in tetraamminedichloroplatinum (IV) chloride ?
(a) 4
(b) 2
(c) 3
(d) 6
Answer:

Option (d)

180.
Which complex has the maximum conductivity in its aqueous solution?
(a) Fe3[Fe(CN)6]2
(b) (NH4)2[MoO4]
(c) K2[Cr2O7]
(d) K3[Fe(CN)6]
Answer:

Option (a)

Showing 171 to 180 out of 226 Questions
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