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

The electronic configuration of Cu (II) is 3d9 whereas that of Cu (I) is 3d10. Which of the following is correct?

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प्रश्न

The electronic configuration of \[\ce{Cu(II)}\] is 3d9 whereas that of \[\ce{Cu(I)}\] is 3d10. Which of the following is correct?

पर्याय

  • \[\ce{Cu(II)}\] is more stable

  • \[\ce{Cu(II)}\] is less stable

  • \[\ce{Cu(I)}\] and \[\ce{Cu(II)}\] are equally stable

  • Stability of \[\ce{Cu(I)}\] and \[\ce{Cu(II)}\] depends on nature of copper salts

MCQ
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उत्तर

\[\ce{Cu(II)}\] is more stable

Explanation:

\[\ce{Cu(II)}\] is more stable due to greater effective nuclear charge of \[\ce{Cu(II)}\].

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  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 8: The d-and f-Block Elements - Multiple Choice Questions (Type - I) [पृष्ठ १०५]

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एनसीईआरटी एक्झांप्लर Chemistry Exemplar [English] Class 12
पाठ 8 The d-and f-Block Elements
Multiple Choice Questions (Type - I) | Q 2 | पृष्ठ १०५

संबंधित प्रश्‍न

Silver atom has completely filled d orbitals (4d10) in its ground state. How can you say that it is a transition element?


Write down the electronic configuration of Cr3+.


Write down the electronic configuration of Ce4+.


Write down the electronic configuration of Th4+.


What is effective atomic number of Fe (z = 26) in [Fe(CN)6]4-?

(a) 12

(b) 30

(c) 26

(d) 36

 


Account for the following:

Mn2+ is more stable than Fe2+ towards oxidation to +3 state.


Name the elements of 3d transition series that show maximum number of oxidation states. Why does this happen?


Which transition metal of 3d series has positive E° (M2+/M) value and why?


Which among the following elements does not belong to the first transition series?


Which among the following is not considered as a part of transition elements?


Electronic configuration of Cu3+ is ____________.


Which of the following compounds is expected to be colored?


The element with electronic configuration [xe]544f145d16S2 belongs to


Name the element of 3d series which exhibits the largest number of oxidation states. Give reason.


Give reason for the following statements:

Scandium (Z = 21) is a transition element but Zn (Z = 30) is not.


Assertion (A) : Copper is a non-transition element.

Reason (R) : Copper has completely filled d-orbitals in its ground state.


Match the properties with the elements of 3d series:

(i) lowest enthalpy of atomisation (p) Sc
(ii) shows maximum number of oxidation states (q) Mn
(iii) transition metal that does not
form coloured compounds
(r) Zn
    (s) Ti

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