Download PTU M-Sc -Chemistry 1st Semester May 2019 51140 BASIC INORGANIC CHEMISTRY Question Paper

FirstRanker.com

Roll No.

Total No. of Pages : 02

--- Content provided by FirstRanker.com ---

Total No. of Questions: 19

M.Sc. (Chemistry) (Campus) (2015 to 2017) (Sem.-1)

BASIC INORGANIC CHEMISTRY

Subject Code : CHL-401 M.Code : 51140

Time : 3 Hrs. Max. Marks : 70

--- Content provided by‍ FirstRanker.com ---

INSTRUCTIONS TO CANDIDATES :

1. SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks each.
2. SECTION-B contains SIX questions carrying FIVE marks each and students have to attempt ALL questions.
3. SECTION-C contains THREE questions carrying TEN marks each and students have to attempt any TWO questions.

SECTION-A

--- Content provided by‌ FirstRanker.com ---

1. Define Hall effect. What is its significance?
2. Draw the structures of (i) Zinc blende and (ii) Wurtzite.
3. What are the point groups for (i) [Pt(NH₃)₄]Cl₂ and (ii) COS?
4. Write the IUPAC names for (i) K₃[Fe(ox)₃] and (ii) [Co(NH₃)₅Cl]Br.
5. Draw crystal field splitting diagram for [Ni(CO)₄].

--- Content provided by FirstRanker.com ---

6. Write the Mulliken symbols for F and P state in an octahedral field.
7. How are polarizability of bridging anion and rate of transfer of electron related to each other?
8. The Q-value for the ⁴He (n,p) ⁴He is 0.76 MeV. What is the nuclidic mass of ⁴He?
9. Identify isolobal pairs from the following: CH₃, CH₂, CH, Cr(CO)₄, Mn(CO)₅, and Co(CO)₃
10. Calculate the spin magnetic moment of (i) K₂[Ni(CN)₄] and (ii) [FeF₆]^3-

--- Content provided by‍ FirstRanker.com ---

FirstRanker.com

SECTION-B

11. What are magnetic materials? Describe its types.
12. Predict structures for (i) B₂H₇^- (ii) B₃H₈^- and (iii) B₁₀H₁₄. Also, show the calculations.
13. Give an account of a nuclear reactor.

--- Content provided by‍ FirstRanker.com ---

14. What is chelate effect? How does the chelate effect help in increasing the stability of the coordination complexes? Explain with the help of at least two examples.
15. Discuss the mechanism of inner sphere redox reaction of coordination compounds.
16. Draw and explain the splitting of d-orbitals in a (i) square planar and (ii) an octahedral field.

SECTION-C

17. Explain the Jahn-Teller effect and sketch the splitting of the d-orbitals for a compressed and elongated octahedron. Also, discuss its consequences.

--- Content provided by‍ FirstRanker.com ---

18. What is radioactivity and radioactive particles? What is the order of radioactive disintegration process? Derive the relationship between half-life and decay constant.
19. Discuss the band gap theory of solids. Also, explain how this band gap is modified in case of semiconductors. How does the conductivity of solids vary with temperature?

NOTE : Disclosure of Identity by writing Mobile No. or Making of passing request on any page of Answer Sheet will lead to UMC against the Student.

FirstRanker.com

--- Content provided by⁠ FirstRanker.com ---