22.12.2012 Views

Old Exam Papers Dec. 2010 - Video

Old Exam Papers Dec. 2010 - Video

Old Exam Papers Dec. 2010 - Video

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

9. (a) Discuss the mechanism of Ziegler-Natta poly-<br />

merisation. 4<br />

thxyj&ukVk cgqyhdj.k dh fØ;kfof/k dks<br />

le>kb;sA 4<br />

(b) Write a note on Melamine formaldehyde resins. 2<br />

esykfeuQkesZfYMgkbM jsftu ij fVIi.kh fyf[k;sA 2<br />

(c) Give structure and uses of the following polymers :<br />

(i) Nylon-66<br />

(ii) Bakelite<br />

fuEu cgqydksa dh lajpuk ,oa mi;ksx crkb;s %<br />

(i) ukbykWu-66<br />

(ii) cSdsykbV<br />

10. (a) What are dyes ? Describe classification of dyes based<br />

on applications giving at least one example of each<br />

class. 6<br />

jatd D;k gSa \ jatdksa ds mi;ksfxrk ds vk/kkj ij<br />

oxhZdj.k dk] izR;sd oxZ dk de&ls&de ,d mnkgj.k<br />

nsrs gq, fooj.k nhft;sA 6<br />

600 10 CH-10<br />

<strong>Papers</strong> (A) (<strong>Dec</strong>ember) <strong>2010</strong><br />

(604)<br />

4<br />

4<br />

(i) C 6 H 5 COCH 3<br />

(ii) C 6 H 5 CH 2 OH<br />

(c) Give the relation between two scales used to express<br />

chemical shifts. 1<br />

jklk;fud f'kV dks O;ä djus ds fy, dke esa fy;s<br />

tkus okys nks iSekuksa esa lEcU/k nhft;sA 1<br />

3. (a) Complete the following reactions :<br />

(i) CH 3 MgBr + ClCOOC 2 H 5 ? ? +Mg (Br) Cl<br />

H (i) addition<br />

(ii)<br />

reaction<br />

R-C + R' Li ? + LiCl<br />

O (ii) + HCl<br />

(Hydrolysis)<br />

(iii) CH 3 COCl + (CH 3 ) 2 Zn ? ?? + CH 3 ZnCl<br />

(iv) C H -S-C H + 2 [O] ?<br />

2 5 2 5<br />

Oxidation<br />

fuEu vfHkfØ;kvksa dks iw.kZ dhft;s %<br />

KMnO 4<br />

(i) CH 3 MgBr + ClCOOC 2 H 5 ? ? +Mg (Br) Cl<br />

CH-10 3 PTO<br />

4<br />

4

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!