Old Exam Papers Dec. 2010 - Video

(ii) Furan is treated with HCN + HCl ?
D;k gksrk gS tcfd %
(i) fijksy DyksjksQkWeZ ,oa dkWfLVd iksVk'k ls vfHkfØ;k
djrh gS
(ii) ;wjsu HCN + HCl ds lkFk mipkfjr dh tkrh
gS \
2
5. (a) How can diethylmalonate be prepared from acetic
acid ? Give mechanism. Also write different
resonating structures of diethylmalonate. 4
Mkb,fFkyeSyksusV dks ,lhfVd ,flM ls fdl izdkj
cuk;k tk ldrk gS \ vfHkfØ;k fof/k nhft;sA
Mkb,fFkyeSyksusV dh fofHkUu vuquknh lajpuk,¡ Hkh
fyf[k;sA 4
(b) How can ethylacetoacetate be converted into :
(i) Isobutyric acid
(ii) Hexane-2, 4- dione ?
,fFky,lhVks,lhVsV dks fdl izdkj cnyk tk ldrk
gS %
(i) vkblksC;wVhfjd vEy
2
2
Papers (A) (December) 2010
(607)
(ii) gsDlsu-2, 4- MkbvkWu esa ?
(c) Identify ABC and D in the following series of
reactions :
H, Hg
HC ? CH A B C D
2+ ?
[O] C H OH C H ONa
2 5 2 5
fuEu vfHkfØ;kvksa dh Ükà[kyk esa ABC ,oa D dh igpku
dhft;s %
H, Hg 2+ ?
HC ? CH A B C D
2
(d) Write in brief about tautomerism in acetoacetic
ester. 2
,lhVks,lhfVd ,LVj esa pyko;ork ds ckjs esa la{ksi esa
fyf[k;sA 2
6. (a) Give brief account of the following :
(i) Determination of configuration of D-glucose
(ii) Interconversion of glucose and fructose
fuEu dk laf{kIr C;kSjk nhft;s %
[O] C 2 H 5 OH C 2 H 5 ONa
(i) D-Xywdkst dk vfHkfoU;kl fu/kkZj.k
(ii) Xywdkst ,oa ÝDVkst+ dk vUriZfjorZu
600 6 CH-10 CH-10 7 PTO
2
2
6
6