Coordination Compounds Quiz-3
Dear Readers,
JEE Advanced is a high level exam that checks your concept by putting various types of questions. The questions are in a different format from JEE mains, herein the questions are : single correct multiple choice questions, multiple correct multiple choice questions, statement based questions and comprehension type questions..
Q1.
Of the following complex ions, one exhibits optical isomerism, That one is
Of the following complex ions, one exhibits optical isomerism, That one is
Solution
(a)
(a)
Q2.
In spectrochemical series chlorine is above than water i.e., Cl > H_2 O, this is due to
In spectrochemical series chlorine is above than water i.e., Cl > H_2 O, this is due to
Solution
(b) When ligands are arranged in ascending order of crystal field splitting energy, ∆, they produce a spectrochemical series. In comparison to H_2 O,Cl is strong σ-donor and good Ï€-acceptor, therefore it is a strong ligand than H_2 O. Hence, in the spectrochemical series Cl is above than water.
(b) When ligands are arranged in ascending order of crystal field splitting energy, ∆, they produce a spectrochemical series. In comparison to H_2 O,Cl is strong σ-donor and good Ï€-acceptor, therefore it is a strong ligand than H_2 O. Hence, in the spectrochemical series Cl is above than water.
Q3. Which pair is not associated with complimentary colour
Solution
(d) Complementary colour of red is green
(d) Complementary colour of red is green
Q4. Coordination number of Cr is six, A complex with , C_2 O_4^(2-), en and superoxide O_2^- will be in the ratio to make complex [Cr(C_2 O_4 )_x (en)_y (O_2 )_z ]^-
X Y Z
Solution
(b)
(b)
Q5.Which has maximum number of unpaired electrons
Solution
(b)
(b)
Q6. Pentamminechloroplatinum (IV) chloride ionizes to give
Solution
(c)
(c)
Q7.If excess of AgNO_3 solution is added to 100 mL of a 0.024 M solution of dichlorobis (ethylendiamine) cobalt (III) chloride, how many moles ofAgCl be precipitated
Solution
(c) [Co^III (en)_2 Cl_2]Cl
It has one ionisable Cl^-
Cl^-+Ag^+→AgCl
100 mL of 0.024 M complex
≡2.4×10^(-3)mol complex
≡2.4×10^(-3) mol AgCl=0.0024
(c) [Co^III (en)_2 Cl_2]Cl
It has one ionisable Cl^-
Cl^-+Ag^+→AgCl
100 mL of 0.024 M complex
≡2.4×10^(-3)mol complex
≡2.4×10^(-3) mol AgCl=0.0024
Q8.Complex [Co(en)_2 Cl_2 ]^+ can
Solution
(c)
(c)
Q9.Which of the following reactions are kinetically favourable
[Cu(H_2 O)_4 ]^(2+)+ 4NH_3⟶[Cu(NH_3 )_4 ]^(2+)+4H_2 O
[Cu(H_2 O)_4 ]^(2+)+ 4Cl^- ⟶[CuCl_4 ]^(2-)+ 4 H_2 O
[Co(H_2 O)_6 ]^(3+)+6Cl^-⟶[CoCl_6 ]^(3-)+4H_2 O
[Cu(H_2 O)_4 ]^(2+)+ 4NH_3⟶[Cu(NH_3 )_4 ]^(2+)+4H_2 O
[Cu(H_2 O)_4 ]^(2+)+ 4Cl^- ⟶[CuCl_4 ]^(2-)+ 4 H_2 O
[Co(H_2 O)_6 ]^(3+)+6Cl^-⟶[CoCl_6 ]^(3-)+4H_2 O
Solution
(c)
(c)
Q10. CrCl_3∙4H_2 O will exist as
Solution
(c)
[Cr(H_2 O)_3 Cl_3]∙H_2 O
[Cr(H_2 O)_4 Cl_2]
Oxidation number =+3
and CN=6 of Cr is satisfied by both
Thus, (I) and (IV) are correct
(c)
[Cr(H_2 O)_3 Cl_3]∙H_2 O
[Cr(H_2 O)_4 Cl_2]
Oxidation number =+3
and CN=6 of Cr is satisfied by both
Thus, (I) and (IV) are correct
