Download OU B.Sc 2018 May-June 2nd Year 1st Semester (Supplementary) 7063 BSc Biotechnology Chemistry Question Paper

dihedral plane of symmetry? Explain with one

Explain s: t-extraction method used

2 Complete the following reactions. T lar;{

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1 -NaOY

Rt —— 8 j:

Yo R

/Q jk ,_f...a R)\K'p* BBC “

W b ¢ ¥+ nC Q“s ¥

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| Y o 0

o Ok

Wi 1 g/“\?\

.__""_‘-—-—5

4 How can Ar-CHO tge prepared from i) arenes i) benzal halides?

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7 What are celloids? Give the classification of colloids with one example each.

78~ Draw the phase diagrams of water system, silver lead system,

7 Write a note an structural features of fullerenes.

8 Caleulaté:and write the number and structure of the sterecisomers for

CHgk(';;KBr) — CH(Br) - COOH and HOOC ~ CH(OH) — CH(OH) - COOH

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Part — B (4 X 15 = 60 Marks)

(Essay Answer Type)

Answer ALL questions from the following :

a) i) Discuss the magnetic properties of lapthamdes.

i) Explain the reactions that take p(l)a:e in HF.

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b) i) Explain different types of C, axes presentin BCls, CHs molecu

diagrams.

ii) Write a note on oxidation states of acunides;

i) Give the equations for Reimer—Tiemann, Gattermann-Koch and Schotten-Boumann reactions

1) Explain the acidic nature of phenols

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Explain the phase diagram of Mg-Zn system.

OR

Discuss the factors affecting critical micellar concentration of surfactants.

What are the applications of nanomaterials?

OR

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Explain Cahn–Ingold–Prelog rules with two examples.

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