Chemistry_2 BA/BCS Islamia University Bhawalpur (IUB) 2017

80

Examination: BA/BSc. (Part-I)

Che Jalamia Uniuersity of Bahamalpur

IA - 17

Maximum Marks: 40

Time Allowed: 3 Hrs.

aper: Chemistry - Inorganic,

lote ampt five questions in all selecting at least one from each section. Question 1 is compulsory

a. 1: Explain the following giving reasonis tani. pk

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(" What are buffers? Give examples.

(if Lone pair-lone pair repulsion > lone pain-bond pair repulsion. Explain.

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(in) Why noble gases are monoatomic?

(iv) Define ligand. Give types of ligands.

SECTION-I

0.2

(a) What is electron affinity? Explain the variation of electron affinity in period. Give reason.

(b) Write down four characteristic features of ionic compounds.

0.3

(a) Explain the following molecules in the light of VBT.

(i) F.

To) Discuss the Bronsed and Lowry concept of acids and bated

Q.4

(a) Predict the shape of the following molecules on the basis of VSEPR theory.

(i) NH;

(it) IF=

(6) Write down four applications of SHAB concept.

SECTION-I

1.6 Lat Discuss the role of 5O, in air pollyn. OK

(br Discuss the anomalous behavid Sot fluorine.

Q.7

(a) Discuss the bonding situation of Xenon fluorides.

(6) What are the postulates of Werner's theory?

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Q.8

(a) Explain the four coordinate complexes in the light of VBT.

/b) Describe the following

(i) crystal field splitting

(i) discovery of noble gases

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