{…⁄h……»EÚ : 56 x……‰]ı : ∫…®…“EÚÆ˙h…… EÚ…‰ +…¥…∂™…EÚ ∂…i……Á ∫… Ω˛i… ∫…Δi…÷ ±…i… ∞¸{… ®… ±… J…B* {…Æ˙“I……Ãl…™…… E‰Ú ±…B ∫……®……x™… x…nÊ˘∂… : GENERAL INSTRUCTIONS TO THE EXAMINEES : 1.
{…Æ˙“I……l…‘ ∫…¥…«|…l…®… +{…x…‰ |…∂x… {…j… {…Æ˙ x……®……ΔEÚ + x…¥……™…«i…: ±…J…Â* Candidate must write first his / her Roll No. on the question paper compulsorily.
2.
∫…¶…“ |…∂x… Ω˛±… EÚÆ˙x…‰ + x…¥……™…« ΩÈ˛* All the questions are compulsory.
3.
|…i™…‰EÚ |…∂x… EÚ… =k…Æ˙ n˘“ M…<« =k…Æ˙-{…÷Œ∫i…EÚ… ®…Â Ω˛“ ±…J…Â* Write the answer to each question in the given answer-book only.
4.
V…x… |…∂x…… ®… +…xi… Æ˙EÚ J…hb˜ ΩÈ˛, =x… ∫…¶…“ E‰Ú =k…Æ˙ BEÚ ∫……l… Ω˛“ ±…J…Â* For questions having more than one part the answers to those parts are to be written together in continuity.
5.
|…∂x… {…j… E‰Ú Ω˛xn˘“ ¥… +ΔO…‰V…“ ∞¸{……xi…Æ˙ ®… EÚ∫…“ |…EÚ…Æ˙ EÚ“ j…÷ ]ı / +xi…Æ˙ / ¥…Æ˙…‰v……¶……∫… Ω˛…‰x…‰ {…Æ˙ Ω˛xn˘“ ¶……π…… E‰Ú |…∂x… EÚ…‰ ∫…Ω˛“ ®……x…Â* If there is any error / difference / contradiction in Hindi & English versions of the question paper, the question of Hindi version should be treated valid.
Write the reactions of (i) aliphatic and (ii) aromatic primary amines
1
with nitrous acid. 7.
i……{… o˘g¯ §…Ω÷˛±…EÚ C™…… ΩÈ˛ ? What are thermosetting polymers ?
8.
PHBV
§…Ω÷˛±…EÚ E‰Ú BEÚ±…EÚ…Â E‰Ú x……®… ±… J…B*
Write the names of the monomers of PHBV polymer. 9.
1
1
x……<±……Ïx… 6,6 EÚ∫… |…EÚ…Æ˙ |……{i… EÚ™…… V……i…… Ω˲ ? + ¶… GÚ™…… n˘“ V…B* How is Nylon 6,6 obtained ? Give reaction.
SS—41—Chem.
.SS–5541.
1 [ Turn over
4 10.
¥…Ω˛ Æ˙…∫……™… x…EÚ + ¶… GÚ™…… ±… J…B V…∫…∫…‰ M±…⁄EÚ…‰∫… ®… EÚ…§……Ê x…±… ∫…®…⁄Ω˛ EÚ“ ={…Œ∫l… i… EÚ“ {…÷Œπ]ı Ω˛…‰i…“ Ω˲* Write that chemical reaction which confirm the presence of carbonyl
1
group in glucose. 11.
¥…]ı… ®…x… A, B, C +…ËÆ˙ D EÚ…‰ V…±… i…l…… ¥…∫…… ®… ¥…±…‰™…i…… E‰Ú +…v……Æ˙ {…Æ˙ ¥…M…‘EfiÚi… EÚÆ˙ =x…EÚ“ i…÷±…x…… EÚ“ V…B* Classify Vitamins A, B, C and D depending upon their solubility in water and fat and compare them.
={…∫…Ω˛∫…Δ™……‰V…x… ™……Ë M…EÚ [Ag(NH3)2][Ag(CN)2] EÚ… IUPAC x……®… ±… J…B* Explain the applications of coordination compounds in the field of metal purification giving an example.
(b)
Write the IUPAC name of [Ag(NH3)2][Ag(CN)2] coordination compound.
19.
1+1
u-˘±…¥…h… i…l…… ∫…ΔE÷Ú±… ®… +xi…Æ˙ ∫…®…Z……i…‰ Ω÷˛B |…i™…‰EÚ EÚ… BEÚ-BEÚ =n˘…Ω˛Æ˙h… n˘“ V…B* Explain the difference between a double-salt and a complex, giving an example in each case.
OR Draw labelled diagram of Zone refining process. In which this process is useful ?
22.
2
EÚ∫…“ + ¶… GÚ™…… EÚ“ +v……«™…÷ C™…… Ω˲ ? |…l…®… EÚ…‰ ]ı + ¶… GÚ™…… E‰Ú ±…™…‰ ¥…‰M… ∫…®…“EÚÆ˙h… ∫…‰ ™…Ω˛ {…÷Œπ]ı EÚ“ V…B EÚ <∫… + ¶… GÚ™…… EÚ“ +v……«™…÷ + ¶… GÚ™…EÚ…Â EÚ“ |……Æ˙Œ®¶…EÚ ∫……xp˘i……+… {…Æ˙ x…¶…«Æ˙ x…Ω˛” Ω˛…‰i…“* What is half-life period of reaction ? Justify from the rate equation for first order reactions that the half-life period for such reaction is independent of the initial concentrations of the reactants.