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

When 1 mol CrClX3⋅6HX2O is treated with excess of AgNOX3, 3 mol of AgCl are obtained. The formula of the complex is ______.

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प्रश्न

When 1 mol \[\ce{CrCl3.6H2O}\] is treated with excess of \[\ce{AgNO3}\], 3 mol of \[\ce{AgCl}\] are obtained. The formula of the complex is ______.

पर्याय

  • \[\ce{[CrCl3 (H2O)3].3H2O}\]

  • \[\ce{[CrCl2 (H2O)4]Cl.2H2O}\]

  • \[\ce{CrCl(H2O)5]Cl2.H2O}\]

  • \[\ce{[Cr(H2O)6]Cl3}\]

MCQ
रिकाम्या जागा भरा
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उत्तर

When 1 mol \[\ce{CrCl3.6H2O}\] is treated with excess of \[\ce{AgNO3}\], 3 mol of \[\ce{AgCl}\] are obtained. The formula of the complex is \[\ce{[Cr(H2O)6]Cl3}\].

Explanation:

One mol of \[\ce{AgCl}\] is precipitated by one mole of \[\ce{Cl^-}\], therefore three moles of \[\ce{AgCl}\] would get precipitared by three moles of chloride ions, \[\ce{Cl^-}\] and in this case \[\ce{3Cl^-}\] are present in ionization sphere (i.e. out side the coordination sphere) in complex at \[\ce{[Cr(H2O)6]Cl3}\], therefore when 1 mol of it is treated with excess of this complex 3 mols of \[\ce{AgCl}\] is precipitated.

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पाठ 9: Coordination Compounds - Exercises [पृष्ठ १२१]

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एनसीईआरटी एक्झांप्लर Chemistry Exemplar [English] Class 12
पाठ 9 Coordination Compounds
Exercises | Q I. 4. | पृष्ठ १२१

संबंधित प्रश्‍न

Explain the following, giving two examples:

Coordination entity


Which of the following compounds is used as a semipermeable membrane?

(a) Potassium ferrocyanide

(b) Potassium argentocyanide

(c) Sodium meta aluminate

(d) Copper ferrocyanide


Write IUPAC names of the following compounds:


Write structures of compounds A, B and C in of the following reactions


Following compounds are given to you :

2-Bromopentane, 2-Bromo-2-methylbutane, 1-Bromopentane

1) Write the compound which is most reactive towards SN2 reaction.

2) Write the compound which is optically active.

3)  Write the compound which is most reactive towards β-elimination reaction. 


Which of the following represents a chelate ligand?


A group of atoms can function as a ligand only when:


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


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


Arrange the following complexes in the increasing order of conductivity of their solution:

[Co(NH3)3Cl3], [Co(NH3)4Cl2]Cl, [Co(NH3)6]Cl3, [Cr(NH3)5Cl]Cl2


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

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


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


The oxidation number d-arbitral occupation and co-ordination number of Cr in the complex cis [Cr(en)2Cl2]Cl are respectively.


Total sodium ions which are present in one formula unit of sodium ethane-1, 2-diaminetetraacetatochromate (II) and sodium hexanitrito cobaltate (III) are ______.


Glycinato ligand is ______.


What is a chelate complex?


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


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


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