Coordination Compounds · Chemistry · NEET
MCQ (Single Correct Answer)
Ethylene diaminetetraacetate ion is a/an:
Which of the following is not an ambidentate ligand?
$$\left[\mathrm{Mn}_2(\mathrm{CO})_{10}\right]$$ and $$\left[\mathrm{Co}_2(\mathrm{CO})_8\right]$$ structures have
A. Metal-Metal linkage
B. Terminal CO groups
C. Bridging CO groups
D. Metal in zero oxidation state
Choose the correct answer from the options given below
Match List I with List II.
List I (Complex) |
List II (Type of isomerism) |
||
---|---|---|---|
A. | $$ \left[\mathrm{Co}\left(\mathrm{NH}_3\right)_5\left(\mathrm{NO}_2\right)\right] \mathrm{Cl}_2 $$ |
I. | Solvate isomerism |
B. | $$ \left[\mathrm{Co}\left(\mathrm{NH}_3\right)_5\left(\mathrm{SO}_4\right)\right] \mathrm{Br} $$ |
II. | Linkage isomerism |
C. | $$ \left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]\left[\mathrm{Cr}(\mathrm{CN})_6\right] $$ |
III. | Ionization isomerism |
D. | $$ \left[\mathrm{Co}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right] \mathrm{Cl}_3 $$ |
IV. | Coordination isomerism |
Choose the correct answer from the options given below:
Given below are two statements :
Statement I: Both $$[\mathrm{Co}(\mathrm{NH}_3)_6]^{3+}$$ and $$[\mathrm{CoF}_6]^{3-}$$ complexes are octahedral but differ in their magnetic behaviour.
Statement II: $$[\mathrm{Co}(\mathrm{NH}_3)_6]^{3+}$$ is diamagnetic whereas $$[\mathrm{CoF}_6]^{3-}$$ is paramagnetic.
In the light of the above statements, choose the correct answer from the options given below:
Given below are two statements :
Statement I : $$[\mathrm{Co}(\mathrm{NH}_3)_6]^{3+}$$ is a homoleptic complex whereas $$[\mathrm{Co}(\mathrm{NH}_3)_4 \mathrm{Cl}_2]^{+}$$ is a heteroleptic complex.
Statement II : Complex $$[\mathrm{Co}(\mathrm{NH}_3)_6]^{3+}$$ has only one kind of ligands but $$[\mathrm{Co}(\mathrm{NH}_3)_4 \mathrm{Cl}_2]^{+}$$ has more than one kind of ligands.
In the light of the above statements, choose the correct answer from the options given below.
Select the element (M) whose trihalides cannot be hydrolysed to produce an ion of the form [M(H$$_2$$O$$_6$$]$$^{3+}$$
Which of the following forms a set of complex and a double salt, respectively?
Type of isomerism exhibited by compounds $$ \left[\mathrm{Cr}\left(\mathrm{H}_2 \mathrm{O}\right)_6 \mathrm{Cl}_3,\left[\mathrm{Cr}\left(\mathrm{H}_2 \mathrm{O}\right)_5 \mathrm{Cl}_2 \mathrm{Cl}_2 \cdot \mathrm{H}_2 \mathrm{O}\right.\right.,\left[\mathrm{Cr}\left(\mathrm{H}_2 \mathrm{O}\right)_4 \mathrm{Cl}_2\right] \mathrm{Cl} .2 \mathrm{H}_2 \mathrm{O}$$ and the value of coordination number $$(\mathrm{CN})$$ of central metal ion in all these compounds, respectively is :
Homoleptic complex from the following complexes is :
Which complex compound is most stable?
Match List-I with List-II :
List-I (Complexes) |
List-II (Types) |
||
---|---|---|---|
(a) | $$[Co{(N{H_3})_5}N{O_2}]C{l_2}$$ and $$[Co{(N{H_3})_5}ONO]C{l_2}$$ | (i) | ionisation isomerism |
(b) | $$[Cr{(N{H_3})_6}][Co{(CN)_6}]$$ and $$[Cr{(CN)_6}][Co{(N{H_3})_6}]$$ | (ii) | coordination isomerism |
(c) | $$[Co{(N{H_3})_5}(S{O_4})]Br$$ and $$[Co{(N{H_3})_5}Br]S{O_4}$$ | (iii) | linkage isomerism |
(d) | $$[Cr{({H_2}O)_6}]C{l_3}$$ and $$[Cr{({H_2}O)_5}Cl]C{l_2}\,.\,{H_2}O$$ | (iv) | solvate isomerism |
Choose the correct answer from the options given below :
Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) : The metal carbon bond in metal carbonyls possesses both $$\sigma$$ and $$\pi$$ character.
Reason (R) : The ligand to metal bond is a $$\pi$$ bond and metal to ligand bond is a $$\sigma$$ bond.
In the light of the above statements, choose the most appropriate answer from the options given below.
The IUPAC name of the complex -
[Ag(H2O)2][Ag(CN)2] is:
The order of energy absorbed which is responsible for the color of complexes
(A) [Ni(H2O)2(en)2]2+
(B) [Ni(H2O)4(en)]2+ and
(C) [Ni(en)3]2+
is
List-I | List-II | ||
---|---|---|---|
(a) | $${[Fe{(CN)_6}]^{3 - }}$$ | (i) | 5.92 BM |
(b) | $${[Fe{({H_2}O)_6}]^{3 + }}$$ | (ii) | 0 BM |
(c) | $${[Fe{(CN)_6}]^{4 - }}$$ |
(iii) | 4.90 BM |
(d) | $${[Fe{({H_2}O)_6}]^{2 + }}$$ |
(iv) | 1.73 BM |
Choose the correct answer from the options given below.
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(At. No. Ti = 22, Cr = 24, Co = 27, Zn = 30)
(At. Nos. Cr = 24, Mn = 25, Fe = 26, Co = 27)
(At. nos. Zn = 30, Sc = 21, Ti = 22, Cr = 24)
(en = ethylenediamine)
(At. No. Co = 27)
where gly = glycine, en = ethylenediamine and bpy = bipyridyl moities.
(At. nos. Ti = 22, V = 23, Fe = 26, Co = 27)
(en = NH2CH2CH2NH2)
(At. No. Cr = 24, Mn = 25, Fe = 26, Ni = 28)
[Atomic number of Ni = 28]
(Atomic no. : Co = 27)