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

Predict the number of unpaired electrons in the square planar [Pt(CN)4]2− ion.

Advertisements
Advertisements

प्रश्न

Predict the number of unpaired electrons in the square planar [Pt(CN)4]2− ion.

लघु उत्तरीय
Advertisements

उत्तर

Oxidation state of Pt in [Pt(CN)4]2− hybridisation is required for the availability of one d-orbital. Hence, there should be no unpaired electrons in the [Pt(CN)4]2− ion.

Pt (Z = 78) ⇒ 5d8 6s2

Pt2+ ⇒ 5d8

Since Cl is a weak ligand, pairing of 3d electrons should not occur, but in a square-planar complex (dsp2) hybridisation, pairing of electrons in the 2 half-filled 5d orbitals occurs.

shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 5: Coordinate Compounds - Intext Questions [पृष्ठ १३५]

APPEARS IN

एनसीईआरटी Chemistry Part 1 and 2 [English] Class 12
अध्याय 5 Coordinate Compounds
Intext Questions | Q 5.9 | पृष्ठ १३५

संबंधित प्रश्न

[NiCl4]2− is paramagnetic, while [Ni(CO)4] is diamagnetic, though both are tetrahedral. Why? (Atomic number of Ni = 28)


Explain on the basis of valence bond theory that [Ni(CN)4]2− ion with square planar structure is diamagnetic and the [NiCl4]2− ion with tetrahedral geometry is paramagnetic.


[Cr(NH3)6]3+ is paramagnetic while [Ni(CN)4]2− is diamagnetic. Explain why?


Discuss the nature of bonding in the following coordination entity on the basis of valence bond theory:

[Co(C2O4)3]3−


Explain the geometry of `[Co(NH_3)_6]^(3+)` on the basis of hybridisation. (Z of Co = 27)


Write the hybridisation and number of unpaired electrons in the complex `[CoF_6]^(3-)`. (Atomic No. of Co = 27)


Using valence bond theory, explain the following in relation to the complexes given below:

\[\ce{[Mn(CN)6]^{3-}}\]

(i) Type of hybridisation.
(ii) Inner or outer orbital complex.
(iii) Magnetic behaviour.
(iv) Spin only magnetic moment value.


Using valence bond theory, explain the following in relation to the complexes given below:

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

(i) Type of hybridisation.
(ii) Inner or outer orbital complex.
(iii) Magnetic behaviour.
(iv) Spin only magnetic moment value.


Write the hybridization and shape of the following complexes:

[Ni(CN)4]2−


If orbital quantum number (l) has values 0, 1, 2 and 3, deduce the corresponding value of principal quantum number, n.


Which of the statement given below is incorrect about H2O2?


As the s-character of hybridised orbital increases, the bond angle


Which of the following methods is used for measuring bond length?


What is the no. of possible isomers for the octahedral complex [Co(NH3)2(C2O4)2]?


In Fe(CO)5, the Fe – C bond possesses


During chemistry class, a teacher wrote \[\ce{[Ni(CN)4]^2-}\] as a coordination complex ion on the board. The students were asked to find out the magnetic behaviour and shape of the complex. Pari, a student, wrote the answer paramagnetic and tetrahedral whereas another student Suhail wrote diamagnetic and square planer.

Evaluate Pari’s and Suhail’s responses.


Which of the following are paramagnetic?

  1. [NiCl4]2−
  2. Ni(CO)4
  3. [Ni(CN)4]2−
  4. [Ni(H2O)6]2+
  5. Ni(PPh3)4

Choose the correct answer from the options given below:


Given below are two statements:

Statement I: Both [Co(NH3)6]3+ and [CoF6]3− complexes are octahedral but differ in their magnetic behavior.

Statement II: [Co(NH3)6]3+ is diamagnetic whereas [CoF6]3− is paramagnetic.

In the light of the above statements, Choose the correct answer form the options given below:


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×