No. of Printed Pages : 16

u96)l 6rai,

Register NumbeI

PART- IIIGeu$l u5l u.L ar/ CHEMISTRY

( 916l$ Lo$gLb e.rru-d ar ergll / Tamit & English Versions)

wvuw.kalvisolai.com.G Lo: 1 .dd I -- IGLo Sp Lo$ LrC -6d,rs6- : 15.Time Allowed : 3 Hours I lMaximum Marks j 150

gl0646orf : (1) .9 6o6irpg or9emnrisgLb efluno u$)eund) rdronpr erainrpeoer+flInri$gri C)ureiara46. a1ria Lr u$1of lai"l lgaopuggLrLlletr eeop6somrsnemfl rrrerfl rlo Ll6irq!rrs$ Gprf e$,iso46.

(Z) $eub.9r6iogt oglru eoougleoeo Lor@GLo erqg5terplqgLr Lrueinr@$pGeraior@Li. LrLrErs6iT d6ofarp$g Clrein6eu L: u.leirL.: @$gq Lb.

l structions : (1) Check the question paper for fairness of pdnting. If there is anv Iack offairness, inform the Hall Supervisor immediately.

(2) Use Black or Blue ink to Kyite and pencil to draw diagrams-

19dl"l1 : Gparerurner S $peb rrlo or.::o7$g, eLoeiit:n@66i)6rT 6r(9g6.

! Note : Draw diagrams and wdte equations 'arherever necessary.

U(gEB - I/ PART - I

1gdluq : (i) gl5trl6rrg5 er9enirrie q9s1g6 ergleoruafldseqri. 30x1=30

(ii) 6rflurr6ir er9arraru$ Gpn$6p@g5] erqg5]s.

Note : (i) Answer all the questions.

(ii) Choose and .rite the correct answer.

1. q r9lTnriof +oeinrn@ :

hrh

De Broglie equation is :

m\r hr. h(u) ^=

(b) f,=hm-, (c) }.=: (d) tr::-

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2. II7 U)o6&.dl6D L6iT6n 66dlri{E6DlrLl :

(.g) spt (.+) sp3d2 (gl) sp3d ( r,r,) sp3d3

'I he nybri.lrsrhon ir ir7 molecule i. '

(r) sp3 (b) sp3d2 (c) sP3d (d) sp3dl

3. 6"f "+gtrislgeoeoroeou-r (2.) r9eineugLb otnutrtunrqeit grauLb eanrri.fl arnrh:

(.s) z-=z s (q)Z.:z+s (61) z-:s z l..\ z-z*-sE{fective nuclear charge (Z*) can be calculated by using the formula :

(a) Z-:Z S (b) 7--:Z+s (c\ Z-:5-z (d) 7:7" s

4. qeoo$ $leoryu!1ei uueinr@$pur@Lb GenLori:

(€r) PCI3 (q,) PCls (6) PH: (lr) FI3PO3

The compound used as smoke scteen :

(a) PC13 (b) PC15 (c) PH: (d) H3Po3

5. Spdoarrorfgon or$p.aueri $lpLo$p $riL-oi, oarrleoreu$ pgdlpgr ?

(sr) Ni2+ (€) F"2+ (6) C"',* (n') cu+

Which of the ions will give colourless aqueous solution ?

(a) Ni2+ (b) Fe2r (c) Cu2 | (d) Cu+

6. OG r 6 u$$ ei . er-'dr' lnair J+ooiou '

(.et)3d64s0 (€)3ds4s' (O) 3d4 4s'? (l.r) 3d34s24P1

I hc e e.rronic confiEiur rrior of Chromium it :

(a) 3d6 4s0 (b) 3d5 4s1 (c) 3d4 4s2 (d) 3d3 4s2 4P1

z. giirq6o6ir@soflair 6r ngtounan 46orr5)gGen$p 6l6o6D :

(€1) +2 (q) +1 (6) +3 (F ) +4

The most common oxidatron state o{ actinide is :

(") +2 (b) +1 (.) +3 (d) +4

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8. gl6irrdrO6 erl r$p6o6n@s6rfld, opeb rgpuerGar ,lE[LrLrLrLrLL 4Igl6D6br{i&,066ir @eleoo. georrel 5d gl6o6r,orri{6,Lq6i 6r6D&L[n6h66ir lcirenan ?

(et) ce (+) t-" (g) P- (n ) Nd

\4rtrich of ihe following lanthanides have no partly filled 4f sub shell but have electronsin 5d srrEshell ?

(a) Ce (b) Lu (c) Pm (d) Nd

9. lgGcnnGpnr9lel ereinr51 GeiLoLb (eq6o6iirdld Gei'Lorb).

(.cr) 6llD&6df8ur6 Grni-eourflein (+)ArC,b,f - Gr nrieor rflein

(@l) unLrrir Grniiaorrflair (+) p6se;r Grnrieorrfleir

Chlorophyll is a complex-

(a) Magnesium-Poryhydn (b) iron-Porphyrin

(c) Copper-Poryhyrin (d) Nickel-Porphyrin

10. 90Th232 + r.Pb2OE 6r6irp LL6(g er9leo or ullsl 6leloflu9rLtu@Li o LDE9Lb p

gscirsofleir erainerofl ri eos :

(sr) 1,1, ap (.: 2cL,2g (g) 611, ap (n ) B.r, ap

In the nuciear reaction 96Th232 -> 6rPb208 the number of o and P particles emittedare :

(a) 1(t, ag (b) 2ct,2P (.) 6a,48 (d) 8ct, aB

f f . g19 rqs$$eu aciror dair@Lb dain$lLb eleoLouria,rlu rflo+Eflu clog :

^ (et) elanfldGoncoar qoirafl (+) ,,+" sradLiGoneoar

(6t) eeu<q6;a.Gt (n ) gGenonni9leLb

The smallest repeating unit in space lattice which when rcpeated over and again resultsin the crystal of the given substance is called :

.(a) Space lattice (b) Crystal lattice

(c) Unit cell (d) Isomorphism

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12. g(D GlduLronpnd 6+uatgoarpu9el 8$Beainror!flen erg zai,renLounlgLb ?

(er) q:* (+) c:0 (@) eg=q (Fr') P^v:0In an adiabatic process, which of the following is hue ?

(n) q= * (b) q:0 (c) AE=q (d) PAV:o

13. eroirrGTnr9 (S) (DDg6 Geuelg:eopugeiir 6roi'LGrnr9 LDtroDd (AS) +dluaoer :

(et) arg! enrqsoir (4) poreu ennqaer

(@t) Lonfledlocir (n') Lo$lurflpareu

Entropy (S) and the change in entroPy of the process (f9 :

(a) are path tunctions (b) are state functions

(c) are constants (d) have no ralues

14. r96i,rolrg6 ofleoansofloir eLopeoeu ronf)eilooir 2,{ : B 69 K1 tb, B = 24 - ri(9Kr- Lb 9196 orerflel :

rsl Kr.2K/ ,+ K, = xl. (g) Kr=(K r' (,1 K, = al,

2

if the equilibrium constants oI the followin€i reactons are 2,A = B is K1 and B = 2Ais K2 , then :

(a) Kr:2K2 (b) K1 = + 1c) Kr:(K,)2 far r, = i2

15. GpnO !D6I'pLr 6i" +-r eLbSgi.ano

(et ) orllooorgddu9eir Gleuar$lparem sl$lsrfl edp5l

( g) or9leooorgddlu9eir Gleudp goro116 6ooprirdlpgt

($t) o9areoGlr n6goror rui$gdpgt('-r, ) o8areuged u9eu gt aoenseoor er! Lr OpStdlpgtPresence of moisture in contact plocess :

(a) activates the catalyst

(b) deactivates the catalyst

(c) increases ihe product

(d) makes the catalyst porous

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77.

18.

79.

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O/W ur6bLo$SlEsr60r ur6uLDri G[@fl :

(gl ) LIG[rLlg6Ir

(+) Sri". +ordlcr5l q6e!op4neir

($t) er!)ardgd;orfl

( rr) ClenqgLr q gt l6leurirsafleiir sarlip rGeuno zLr qooir

The emulsii,ing agent used in O/W emtJsion is :

(a) Protein

(b) Long chain alcohol

(.) Lampblack

(d) Heavy metal salts of fatty acids

eopo urlgein ClrTnrieoau@ 6lotpeuorrqLb o9loeuu9 eir GotoLb erpeiir

gr eineofl oeu u9lci geopdlpg ?

(sl) +elsponsir (qg) 8aflerflein

($) Lonruo#a 6DL-.%ri6oorJO (r.r.) Lone$ L.l rqeorLb

Decomposition of Hydrogen peroxide is retarted in the presence of :

ggu oreoe o6leoonu9lein er9eoan Goro

(g) e$lrri Gionai-l o6lannr9 1

(@) eflemnrg r

The unit of zero ordel rate constant is :

(a) Iitre mol-1 sec 1

(c) sec 1

(a) Alcohol(c) Manganese dioxide

e.5!Lor6rs6D6r gfi[r 6D Lo L-r LJ O.$g] ri)

(et) o$Bu qarirti;adr

(@ ) a.pLour9lfluqColloids are puified by :

(a) Precipitation(c) Dialysis

Lonfl er! u9lein eleug :

(g) GLonen e$irft 1 or9ennrl 1

( r,r,) e$lrL-i2 erietrnrl 1

(b) mol lih'e 1 sec 1

(d) litld sec l

(b) Glycerine

(d) Ir{olybdenum

CP66P :

(+)(")

6n.s,ar rao rrair

Coagulation

Filtration

(b)

(d)

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20. 0.1 N NaoH L6ir6n 56o[e6rtl6i,r PH ]

(sr) 1 (+)r0 1 (g) 13 (n') 1o r3

The pH of a soluiion containin8 0.1 N NaOH solution is :

G) 1 (b) 10 1 (c) 13 (d) 10 r3

21. CH3NIgI punrf[io er$ptl +6l6pDtr6i)60 oooqLrlranne .lrdnlro,Bp ODqurrS].

6t66t 2

(J)l) CH?NlgI +6DsgDrgjL6i,r ageooarq rf1$gJ L6$Gpeoari ;3!;5r( :g ) @ -* 6t f ainL+6m oararor Gor qrilgLb peiirco Lour gl

(S) cH.vgr qelagorglreiir o9eoemqrfl$g C2H5Mgl -=a a5ia=(n) 4 sg1nd16o CH:MgI s6rD[6u5]6u6D6n

Lthyl al(ohol cannoi be used as a soivent for CLIIMgI becar-rse :

(a) ClllMgl rea.ts with alcohol giving meihane

(b) The ieaction between them is exPlosive in nature

(c) CFI:MgI is convertcd to C2H5Mgl

(d) Alcohol is nnmisiciblc u'ith CHjM81

22. npfld,r +2,rien\lgair .agt :

(et) dgergeoor e$flur-61rieg (+) "pd@

6)auru:l:rrrg

(@) :2;d;orl g?G6irpp 6 p6in6oro (") ,p99 pdnoruoqeorugl

Oxvgen atom of ether is :

(a) Very active (b) RePlaceable

(c) Oxidising (d) Cornparatively inert

23. GenquLir gelnn6eoeeor €6o6os6l gDIr6o6uO L6i'r oflaoorL-ll@$$ n'peo1l

Glrpeunb. @5lGer :

(et) gon LrLonoir argleoen (4) o6leuer5luLbeeh 6lpng$pa,

(@) eonreiu 6pn1g$por (r) Goneir9lein o$eoar

Eiher is formecl when a1ky1 halide is treated with sodium alkoxide' This method is

known as r

(a) Hoffmann reaclion (b) Williamson synthesis

(c) Wurtz synthesis (d) Kolbe's reaction

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24. Ln6D6iJi6iD etr6infl 6r6iJrlrgl :

(et ) etLiGonedLlln sau$p 6LrToiu 6GennmT@

(q) stoGLoro#l,un 56DDp 6Lr[6iu +r;6D6ru0($) e LbGLo neof)u r s6uEp 66l6.ri 6oDLG7L

(;) .*rbGLcrctflun ser$p delern 15ccrrr6or@

Tollen's Reagent is :

(a) Ammoniacal cuprous chloride

(b) Ammoniacal cuprous oxide

(c) Ammoniacal silver nitrate

fd) A..n-ur'J, Jl -ilve- c5lo''de

25. snrirnri8e6li e1l6leu erg!u Guirl5rsofleir Cleu:alppair r

(g) sr6leu lgGorneoq@ > eroiurir > €ta)Lo@ > eldeu $rflerSl

(+) etdo gGorneoq@ > .96eu $rfla! > 6r6fuLir > cll6oLDO

($)) stdergGenreo[@, etcoLo6t > e1L61eu$rfle8 > aroiuri"

(m) etr-6leu$rflo5l > ordurir > et@Lo@ > sl6)eulgGonneop@

The order of reactivity of carboxylic acid de vatives is :

(a) Acid chloride > Ester > Amide > Acid anhydride

(b) Acid chloride > Acid anhydride > Ester > Amide(c) Acid chloride > Amide > Acid anhydride > Ester

(d) Acid anhydride > Ester >Amide > Acid chloride

,o26. CI13 CH2-N< , CH1CH2-O-N=O GsiLoiEro6iT snr@Li Lon$flu-rLb I

"o(er) @ronEdluLb (q) em:6le5lg Glpnrn on!$)ul Lb

(@) adleoeo$Clpn1g$ LonffluLn (r+) @uru6e eLo@eneu Lorrp$)uLb

.oTlre isomerism exhibited by CH, Cl12 N"" and CH.CH, O N:Ois:

'o(a) Position (b) Chain

(c) Functional (d) Tautomedsm

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zz. GLo$$lol gGer eueoorenr

(er) 6lo$9o =llrSetr

(6t) aru 6Lo.69en c1rfoir

Methyl iso.yanide on reduction using

(a) Methyl amine

(c) Di methyl amine

28. 619l n-fl6o6ioruJ crl66ir ?

(.er ) €r60fl6$6i,I

(@) r,r,rfl aoemru r-9greo-ei elL6cin

Which of the foilowing is a secondary

(a) Aniline

(c) Sec. butyl amine

8

Li Al H4 Cl6n@in0 g@l;oLb Gl+uro]pnel dleorLugl :

(q) ergpc eluSeir

(r') reol r$argeu gtL6eir

Li Al H4 gives :

(b) ELhyl amine

(d) Tri methyl amine

(g) eou."" L9eoarei; grfein

( r'r,) go$;oaoru r9grorrel +4r-6ein

amine ?

(b) Dlphenyl amir,e

(d) tert- butyl ar:nine

29. r-9 ynaffi scir Lo$p ri gnou lri:eafl ein GLo$uquorr u n51onriSloirpeo.

(g)

(o)

o rfG r neop4 rG 1u @ soir

LL6(D Jx L6l6DrE66ir

(4) er9 rrrtrleiire eir

(n ) 6Loqggocir

act as protective agent on d1e surface of animals and plants.

(u)

(.)

Carbohydrates

Nucleic acids

(b) Vitamiru

(d) Waxes

30. Geeu*er rfl eil grridlu:

(gt) e0LglGr

Important constituent

(a) Lipid

Geu$lLrGlrnlgoir:

(g) GadugGouroiu (6t) qrp'n

o{ cell r,r,all is :

(b) Cellulose (c) Protein

(m,) o6lurrJleir

(d) Vitamin

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U(g;F . /PART-II

Odlull : (i) oGggyrb u$eoourfig o6larni:srg619 ofleoruofl.

(ii) gdGl,arng er$ome6l!66 grnng etebarg @ryain@ ountsdluooafl<iroflor ruerfl.

Note : (i) Answer any fifteen questions.

(ii) Each answer should be in orre or tq.o sentences.

31. erorriuqneiir +pp6$6b or$i6gSlu0dn go66u:$geuLb ung?

What is the significance of negafive elecEonic energy ?

32. Grrqrafl aiir slur6rfl u-rrri1qrb qSpeil Gurfl e5lur$eopor9lr 6aopoq e1aiir?

E)eiain why the ionisation energy of Boron is less than that o{ Be.

33. P2o5 SpEp $n $6d ereiirueop pgdl.

Prove that P2Os is a powedul dehydrating agent.

a+. pr$e6lu$fair' 6rc9gU-b Ur6irg L 6i'r&a,or 6r (rgl.

Write any th:ree uses of Helium.

3833

15x3=45

35. @orrpeoeu$ pefi Lonlecir glal6oir64e Gef LDrEte6i)6n l1geurBlgelgt Oaiii?

\4&y do transition elements fo1m complexes ?

36. praro6 @fng $rynoua$gluein qrflqLb o6leoareou erflor&1gs.

How does gold teact with aquaregia ?

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37. Ag108 zralger9ein e160[ ortrEon6Db 2.310dlrneeii eapein 6opoq Lonfla! croiiron?

Calculate the decay constarli for Ag108 if its ha1{ li{e is 2.31 minutes.

erllrrfl ueir-r $)areueoLo oroinpneu ereirar?

l lhrt is a vitreous state ?

39. gig Giond SriLorb 100"C Gorurpeocuu9al 6en$lrilgLbGurgl ger9unpe0eir

CldrLrLrLi) 540 Ca1lgm erofleb qe9ulnper5loir ereinuGTnr9 arpp$a7& aanrid@s.

Calculate the enhopy increase in the evaporation of 1 r.ole of a liquid $'hen it boils at100'C having heat of vaporisation at 100"C as 540 Cal/gm.

40. 6r!l6ii6ir 96&15tb (Q) 6)l6o[u]9l.

Define Reaction Quotient (Q).

10

38.

41.

43.

.el@pp@p5l peqgLb or9oron

Wliat are .onsecutive reactions

oreinpneu ereinan? 6rOEgr65rLGl p(,6.

? Give an example.

darrieqGlsnoir gppei oeinpnd oeireoi?

What ii activation energy ?

qeiirL nel er9eoorrerl ereinpnci oeilom?

What is Tyndall effect ?

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44. Clulrg] slu-r6iU 6rll6D6fldl 6r6inpn6b 6rdT6ir? gCD 6rOFSld;srLO po.n.

What is common ion effect ? Give an exampie.

45. egrLD[ur s6Dd)6ruJlltir66l 6!6rFUln

Def ine'Racemisation'.

46. tr6$6o6onrur +6u5@rail, o0rirf GLour: +ur696b 616(1$gif,o e$a_.areou orqgg1s.

Cive the Victor Meyer's test for lertian alcohol.

47. 6rifl.i sl6leuLb oroirrp nel 6r6ir6r 2 +Igt ."" rg en no5ieS q9$51 erororngtou nrf[i,s Lr I G6lms,r2

I\rhat is picric acid ? How is it prepared trom phenol ?

48. gcf rllrlrlLq6ir 6r6irDr6,i 6r6il6ir? g]p6ir .jur6ir uJng?

\V\at .- Urotroprne I i ,i\ e it" u.e

49. LorEg ooiurqrn&gpdu o9lareoeou arqgg;a.

Write trrn--e'lerifrcdiior red.lior

50. C6H7N 6T6ingl6 g)6D6&01 6rtrurlrLlr06)LLr A ereinp "9GryLonu+li efl6D6inr6DurgJL6l6ir 6rlLu.rGsr g6oeb or9ooaidlg rrur@ B -oou$ pg61pg1. B -6i,r 1!fl,Jr56Dtrs6o6n Clon$l&oeoorris C -Ap pgdlpgl GeriLor s6ir A, B, ro$grb C -ts6sainr$)e .

An aromatic primary amine A with molecular formula C6H7N undergoes diazotisationto give B. When the aqueous solution of B is boiled it givis C. Ideftit A, B and C.

51. sLileu $d;dsafloin 9&6u$51orib ung1? er@$g6orr@ pgs.In rr,That way antacids are important ? Give an example.

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uolil - m/ PARr - rrr

r6d[ru : ".dGlel fl. h LElfl6rlla r',n €. Lb s,6nrD ;6L LoLb 6lrn eflarndsooor Ge.i icts.G]ds,r

GlLonppLb oqgr o9onn6sq966 ofleoru.lofl. 7xs=is

Note : Answer ar1y seven questions choosing at least two questions from each section.

r9lfleq - g1l Section - A

52. 6opltrgdJr U)6Dl;e!Et Lo61rrp6o6r) (g6Dde'g griGlrrneb Gardrene grei.rLir

er!)arrigs.

Explain the formatron of Nitrogen molecule by Molecular orbital theory.

53. *|arri srp6iiT 0rri41ur pngerllalgpgt eroueunp r91rfl$6p@6auu@6pg?

Explain the extraction 01 zinc h'om its impotant ore.

54. GLon6.l6osL Loeora5le$g$g eun$peooor@seoen erenarnp r9lfl$615@ur : nur?

How are lanthanides extracted from monazite sand ?

55. 81]>r5e{66rirl +4eoauorle GenLo$$lfg r

(sr ) IUI'AC Cllrurir

(g) eoLour lGeurs etu-lofl

(6t) "uoa

(r.r,) .larolre4 orent

(z) staoLorq gflL-rr9l@e

Write :

(a) IUPAC name

(b) Cenhal metal ion

(c) Ligand

(d) Coordinationnumbel

(e) Geometry of the complex

ICr(en)3lC11

lcr (en)3lCl3

72

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Erflol -4lSe*ion-B

56. 6. ri 6u ej5pdo rCr-eir 61p ,Gluebqooror erqgg]s.

Wlat are the characteiistics of fi.ee energJr (G) ?

57. Kp:Kc BT)a"c 6r6iTp slo6inLrrr6Du Grrgtarran e(9 G6rge eLo$1eoo o6laren&1gargofl&oeqLb.

Derive the relation Kp: Kc (RT)A"g for a general chemical equilibrium rcacdon

58. Glp6l eueos erlleoemu9loin o0elreorGors orryfloSlBenar +Loeinrnueor.$ p1gor51.

De ve an expression for the Rate Constart fm a fust otder reaction.

59. g(g Zn ril6i,rdrrur 0.01 M ZnSOa s@r[s€516i 25.C u!]6n eoert;sL]r@Grournonneirslp6ijr c)t6o[s6D dloin etqg$p$eopri eo,Edl@s. IE..=0.763 V]

Wlat is the potential of a halI cell consisting of zinc electrode in 0.01 M ZnSO4 solutionof 25"C [E :0.763 V].

Eflo.l -glseetion-C

60. Fpfl6! zoiron on!$lurasaoen gf or@$g6er @uein erglorBgs.

Discuss t})e isomedsm in ethers with one examole for each

61. +6iLn6i gg666616iir er gl19leoparu or9lar61gs.

Explain the mechanism of Aldo1 condensation.

3833

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62. Gsrr+ur 6 .'.! ni GLorLq6EO$gl croi ou np qriaone0ripunrfl6su L,l @6lpgl ?

How is oxalic acid manufactured ftom sodium formate ?

e1ideuLb G l4l Loorer9ldr

Explain the characteristics of Rocket propellants

u(giB - Iv/ PART - Iv

gfluqeoir : GLon$pLb pnofi1g oflenn6s qgrilg erSleorurof.

63. TnriGor r$$oafl ein flpLr rQ ueiqoeoor erqg5lo.

Note :

(')

(i,

64. (er) une$lra: GD6opull6l srur6ofl +f$6op semrGdl@o g)@p6Dur 6rq6nii66.

( q ) 61c0ri;Goneineofl ein r ueirseocnri gfl r i9@s.

(a) Explain Pauling method to deternune ionic radii.

@) Give the uses of silicones.

65. (sl) st6D6drrell& GenlorErs6iT LDdur 6)6oairpp6i,I 19armruqri 6lcnoiieosu9lein

sg5lG+ rehoeoen$ p19o.

(g) GarS or$areme g&1gLb, urs19 e0eoanoqgdgLb roiror GouEL:n@e oir

tIr6D6t ?

Give the postulates of Valence bond theory of Coordination Compounds.

Dilferentiate chemical reactions lrom nuclear rea.tion\.

(u)

(b)

4x7O=40

(,

(i,

er9lorn erain 70 6(9 6llrurton6 o9orru:eflE,isrlurei G6rainG)6.

r-6pgrciron a6lem nri s ofl ei eyGpglrn greilEl eElornrieqgBqgorll eo rur ofl .

Answer four questions.

Questlon number 70 is compulsory and answer any thee from theremaining questions.

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66. (st) r9lfnd dp $lfe Loneofl Genpeoaneou erglorrige.

(g) Gar$u9ula Cg6Dp (!D6Drb a,proaaoir pu:nrfl$geoau oflourfl.

(a) Explain Bragg,s speclrometer method.

(b) Write about the preparation of colloids by chemical methods.

67. (=ll) 616ir6rrrE rglfleoeurar rpei u$fru el npgfiafl u 6iD Grs n6iT6i)sri6 n6ereingoeocn erqggte.

(g) rdeireeu gtdlo9uden e ngrLb elGpgrLb g$g GengGlpnrrioeoen a8enri65o.(a) Write the evidences of Arrhe.jus theoiv of Electolytic dissociation.(b) Explain any five terms in cell terminology.

68. (sr) O6n6indlGurrLoi6@dgLb, uuneiurgGTnorispgriqgLb rcirm GeuErn@earon6rrLD{it1r

( g ) 6l reiirenug& e4 dl6D6 S$&66iir.Lorpd66lgpgl arouar nE Gl upu u @6lp51 ?

(i) Glrngugeiir

. (n) "'"r9aoatrel +ueoem@

(iii) Grft Lr6in-6DL-+l;6D6DO

(a) Write the dilferences between enantiomas and diasteromers.

(b) How is benzoic acid prepared from:

(i) Toluene

/ii) Phenyl .)anide

(iii) Carbon dioxide

69. (et) eoprGln 6lueiirfefiein eriTriseoTee$el eysu@rb g@&oLb rSfl a6lon&go.

(4) 1gqgriGonenieir +rleoroucor orgarrfl .

(a) Explain the reduction of Nibobenzene in alkaline meriium.(b) Explain the str.ucture of Glucose.

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70. (+)1) C2H6o 6r6iJrD Ur6D6&-El elnurL]ln@arru] (A) er eirp oriLo+ Geri LoLb uGeunsGerqu$5lreir or!)eoenr r@ 6ngiDlirg6)6ii GoroiGurpgidlpgr. Geri Lolb (A)

.91,-i H2So. LL5ir 440 K 6erJrfaoorsg 6GrLrG$96irre (B) 6r6ng)

gab8arer pgdlpgr. (B)-GLrlr ri oqarfl q reir 4rio! gGeulpri =1arrgglCrH6O, 6r6i,p gc eL,Ge'p arnur!rn@eorur (C) GsnDEa)g, godlD5]A, B LoDg6 C -E 6 i,TLdlEgr olieneoeeneir erlgrgts.

(+) (A) 6r6i'rp LG6D rsll <9lpg!6nLUr +;uenL,@ gngrcrElcrtlg$g19fl$Glg@r;;s,rr@dlpgr A - E $n$p arprfl6; =9u!eu$gl-cin o0eneinL,@$p

(B) 6r6fr0 Gei'Lo$aop .g66lpgr $gl gaerni anoiuqri e, et-'g

cr6Dp66lJG6lDgl (B) - E 723 K - 6E rgouoEg (C) ,.99i6 ()2 - A podlDgrA, B LDEEILd C A slr6Nr. or!)eoeraelen o9rrri1g.

gl6,16D5l

(6)) C7H5O odnp greurio.g erru!un$en:u.r (Al .--6ip ;-sr;Ceitodr6l r er-! or s ro leeoo g @6 gel$ dl ar eu. +6.r rar s i'red eG qr r er,.r ard grrr$6pg. (A) - A sr6ifl68gr Leir o,9areorr-$$a (B) oreinp Ge:r.o$eop

pqldlgrg G,oglLb (A) 6r6irp G4ri-Lo66op Cl, er r;h o61;oeorgrid)

@euornpGrngr o!1or<nrr@ (C) oeir"o Geno$mri pgdlEg A, B LoDp6

C g sarufl$5l aQaoameroon arqggts.

(n) qGTriuL-nGpnu9ri stdlru$$eh K, Lci-: 1.34x:[0-r. 0.5M

qGqnLlrnGpnu9ri .l dler Lir tofgLn 0.5 Ni G;"rrLb qGlrlrnGenr.Gurzoirorr sco[e6f]6ir pH g sar'ri61@.

(a) An organic compound (A) of motecul.u formula C"H6O liberates 1-Iydrogen withmetallic sodium. Compound (A) on heating lLith conc. H"SO,, at 440 K gives an

alkene (B). Compour-rd (B) when oxidised b1, Baever's reagent gi'res compound(C) of molecular formuta CrH,,Or. Identif,v A, R ancl C and explain the abovereactions.

(b) The metal (A) is exhacted from its suiphide ore. On beatment u'ith dilute nihjca.id metal A gives a compound (B), rvhich is also kno'r,l as Lunar caustics. (B)

on heating at 723 K $ves (C) and O,. I.leniify -{, B and C and explain the rcactions

OR(c) Anorganic compound (.A.) ofmolecular lormula C7i{6O is notleduced bI Ijehling's

solution but will undergo Cannizaro reaction- Compound (A) reacts hdth Anjlineto give compound (B). Compound (A) also reacts wiih C12 in the absence ofcatalyst to give compound (C). Iclentify,\, B and C and expiairl the rea.tions.

(d) The K" of plopanorc acid is 1.34v10 i.\ hat rs the pt-l ofr solution containing0.5 1\4 propanoic aci.l and 0.5 M sodium propanoate ?

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