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Old Exam Papers Dec. 2010 - Video

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fuEufyf[kr esa ls fdUgha nks ij y?kq fVIif.k;k¡ fyf[k;s %<br />

(i) pØ.k&pØ.k foikVu<br />

(ii) ukfHkdh; ifjj{k.k<br />

(iii) ;qXeu fLFkjkad<br />

(b) How would you identify chlorobenzene (C 6 H 5 Cl) by<br />

NMR spectroscopy ? 2<br />

NMR LisDVªksLdksih }kjk DyksjkscsUthu (C 6 H 5 Cl) dh<br />

igpku dSls djsaxs \ 2<br />

2. (a) Discuss the principle of PMR spectroscopy. 5<br />

PMR LisDVªksLdksih ds fl)kUr ij foospu dhft;sA 5<br />

(b) What is meant by areas of signals ? In the NMR<br />

spectrum of the following compounds how many<br />

signals would appear :<br />

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

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

ladsrksa ds {ks= ls D;k rkRi;Z gS \ fuEu ;kSfxdksa ds<br />

NMR spectrum esa fdrus&fdrus ladsr iznf'kZr<br />

gksaxs %<br />

600 2 CH-10<br />

8<br />

4<br />

(b) Discuss structure, chemistry and synthesis of the<br />

following dyes :<br />

(i) Methyl orange<br />

(ii) Fluorescein<br />

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

(603)<br />

fuEu jatdksa dh lajpuk] jlk;u ,oa la'ys"k.k ij foospu<br />

dhft;s %<br />

(i) feFkkby vkWjsUt<br />

(ii) yqvksjhlhu<br />

CH-10 11 600<br />

4<br />

4

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