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MCQ Questions Class 12 Coordination Compounds with Answers - Set - 1
Question 1:
Which of the following statements is true?
(a) Silicon exhibits 4 coordination number in its compound.
(b) Bond energy of F2 is less than Cl2.
(c) Mn(III) oxidation state is more stable than Mn(II) in aqueous state.
(d) Elements of 15th gp shows only +3 and +5 oxidation states
Correct Answer – (B)
Question 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
(a) 6
(b) 7
(c) 8
(d) 9
Correct Answer – (D)
Question 3:
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 precipitated would be
(a) 0.003
(b) 0.01
(c) 0.001
(d) 0.002
Correct Answer – (C)
Question 4:
CuSO4 when reacts with KCN forms CuCN, which is insoluble in water. It is soluble in excess of KCN, due to formation of the following complex
(a) K2[Cu(CN)4]
(b) K3[Cu(CN)4]
(c) CuCN2
(d) Cu[KCu(CN)4]
Correct Answer – (C)
Question 5:
Shape of Fe(CO)5 is
(a) octahedral
(b) square planar
(c) trigonal bipyramidal
(d) square pyramidal.
Correct Answer – (C)
MCQ Questions Class 12 Coordination Compounds With Answers
Question 6:
The anion of acetylacetone (acac) forms Co(acac)3 chelate with CO3+. The rings of the chelate are
(a) five membered
(b) four membered
(c) six membered
(d) three membered.
Correct Answer – (A)
Question 7:
Which of the following will exhibit maximum ionic conductivity?
(a) K4[Fe(CN)6]
(b) [Co(NH3)6]Cl3
(c) [Cu(NH3)4]Cl2
(d) [Ni(CO)4]
Correct Answer – (A)
Question 8:
Cobalt(III) chloride forms several octahedral complexes with ammonia. Which of the following will not give test for chloride ions with silver nitrate at 25°C?
(a) CoCl3 · 5NH3
(b) CoCl3 · 6NH3
(c) CoCl3 · 3NH3
(d) CoCl3 · 4NH3
Correct Answer – (C)
Question 9:
In metal carbonyl having general formula M(CO)x where M = metal, x = 4 and the metal is bonded to
(a) carbon and oxygen
(b) C O
(c) oxygen
(d) carbon
Correct Answer – (D)
Question 10:
The correct order of the stoichiometries of AgCl formed when AgNO3 in excess is treated with the complexes : CoCl3.6NH3, CoCl3.5NH3, CoCl3.4NH3 respectively is
(a) 3AgCl, 1AgCl, 2AgCl
(b) 3AgCl, 2AgCl, 1AgCl
(c) 2AgCl, 3AgCl, 2AgCl
(d) 1AgCl, 3AgCl, 2AgCl
Correct Answer – (B)
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