Download PTU B.Sc (Non-Medical) 2020 March 2nd Sem 76299 Inorganic Chemistry Ii Question Paper

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Roll No. EEEEEEEEEE Total No. of Pages : 02
Total No. of Questions : 09
B.Sc. (Non Medical) (2018 Batch) (Sem.-2)
INORGANIC CHEMISTRY-II
Subject Code : BSNM-201-18

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INSTRUCTIONS TO CANDIDATES :

1. SECTION-A is COMPULSORY consisting of TEN questions carrying ONE marks each.
2. SECTION-B contains FIVE questions carrying FIVE marks each and students have to attempt any FOUR questions.

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3. SECTION-C contains THREE questions carrying TEN marks each and students have to attempt any TWO questions.

SECTION-A

1. Write briefly :
   1. What compounds are formed when Li, Na, and K combine with oxygen?
   2. Why does sodium metal form peroxide in preference to oxide?
   3. “Boric acid is not an acid in the protonic concept”, Explain.

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   4. “Nitric oxide becomes brown when released in air”. Explain
   5. What are the d-d transitions?
   6. Explain the paramagnetic.
   7. What hard hard interactions are ionic?
   8. What is the coordination number?

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   9. What is inert pair effect?
   10. Explain the paramagnetisms.

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SECTION-B

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2. Discuss the structure of AlCl3.
3. Explain the structure of SF6 and SF4.
4. Explain the diborane.
5. Explain why the first ionization energy of copper is higher than those of alkali metals while second and third energies are lower?
6. Discuss the electronic configuration of Nb and Au.

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SECTION-C

7. Explain the classification of acids and bases as hard and soft.
8. Explain the silicates
9. Explain the complexes of Magnesium with EDTA.

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.

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