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कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान 2nd PUC Class 12

Assertion: Cr(HX2O)X6]ClX2 and [Fe(HX2O)X6]ClX2 are reducing in nature. Reason: Unpaired electrons are present in their d-orbitals.

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प्रश्न

Assertion: \[\ce{Cr(H2O)6]Cl2 and [Fe(H2O)6]Cl2}\] are reducing in nature.

Reason: Unpaired electrons are present in their d-orbitals.

विकल्प

  • Assertion and reason both are true, reason is correct explanation of assertion.

  • Assertion and reason both are true but reason is not the correct explanation of assertion.

  • Assertion is true, reason is false.

  • Assertion is false, reason is true.

MCQ
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उत्तर

Assertion and reason both are true but reason is not the correct explanation of assertion.

Explanation:

In the complexes, \[\ce{Co}\] exists as \[\ce{Co^{2+}}\] and \[\ce{Fe}\] as \[\ce{Fe^{2+}}\]. Both of the complexes becomes stable by oxidation of metal ion to \[\ce{Co^{3+}}\] and \[\ce{Fe^{3+}}\].

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अध्याय 9: Coordination Compounds - Exercises [पृष्ठ १२७]

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एनसीईआरटी एक्झांप्लर Chemistry Exemplar [English] Class 12
अध्याय 9 Coordination Compounds
Exercises | Q V. 42. | पृष्ठ १२७

संबंधित प्रश्न

Write the structure and IUPAC names of all the metamers represented by formula C4H10


Explain the following, giving two examples:

Coordination entity


Predict the co-ordination No. of cs+ ion if `r_(Cs)^+` = 1.69Å and `r_(Cl)^-` = 1.81Å.


The coordination number of Cr in [Cr(NH3)3(H2O)3]Cl3 is ___________.


The oxidation number of Fe in K4[Fe(CN)6] is ____________.


The coordination number of the central ion may be obtained from:


Which of the following complexes formed by \[\ce{Cu^2+}\] ions is most stable?


When 0.1 mol \[\ce{CoCl3 (NH3)5}\] is treated with excess of \[\ce{AgNO3}\], 0.2 mol of \[\ce{AgCl}\] are obtained. The conductivity of solution will correspond to ______.


Which of the following complexes are homoleptic?

(i) \[\ce{[Co(NH3)6]^{3+}}\]

(ii) \[\ce{[Co(NH3)4 Cl2]^{+}}\]

(iii) \[\ce{[Ni(CN)4]^{2-}}\]

(iv) \[\ce{[Ni(NH3)4Cl2]}\]


A complex of the type \[\ce{[M(AA)2X2]^{n+}}\] is known to be optically active. What does this indicate about the structure of the complex? Give one example of such complex.


Oxidation number of cobalt in K[Co(CO)4] is


Which one of the following ligands forms a chelate?


The complex which has no d electrons in the central atom is:-


Which of the following ligands can exhibit linkage isomerism?


Metal attached with EDTA in an octahedral complex, has coordination number ______.


What are Heteroleptic complexes?


The equivalents of ethylene diamine required to replace the neutral ligands from the coordination sphere of the trans-complex of CoCl3.4NH3 is ______. (Round off to the Nearest Integer).


The following ligand is:


Glycinato ligand is ______.


What is meant by the chelate effect? Give an example.


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