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Subject Code :34 (NS)

CHEMISTRY

(Kannada and English Versions)

[Max. Marks:70Time : 3 Hours 15 Minutesl [Total No. of questions : 37]

(Kannada Version)

draaldrJ$ : 1. * €dcdg8o$q ooe:e Sqrorirl€d. ae4 SqrrirJddq

eru$Odz3ed:.

2. Sqpd-Aol: {d*oSooddo e-od: epoddod 10 ePodrJdl,

2 epoddod 10 ercdrJq;fu,

3 eroddod 15 ePodrJdl,

elodrJdod 35 ePodrJq*:.

aggrJd&d drq d&:eddcorJd&4

Sqprl-Bo$ $ofooa*.Sqrori-Cob {doofnoddoSgnrJ-Don ffiofooa{ S

3. elrfdrecbo3e| . epodaad

aldogoO.

4. errfdrzsde] sorf &,Sea:ef drdl ddd aororordeoJddco CIdtu'

(drElt0d u-orqrde0Jd a:dfr3 elduod$g)

Sqrorf-A

t. * ddnd oe8 €{,Jddq en:$otu. €e€{rr" z-od: epodsd. (€e €{olrdqe.odr # eo$ao e,odr oodrde9- wgiofu) : (10 x 1 = 10)

1) d}o$ ooJrd:dd; 8eru.

2) uocb qdead q,oztr oa66 Qardd e.odlod dadb qdd, erd: DdQ

eed>rOfo{d?

P.T.O.

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-2- lil{illrtiltttliillllt34 (NS)

3) z,od: doeef MnOo erouddddg Mn2* soJndddqn doaierie'u cd'g

4 -

JJ^ q-)- J!. -a6rJn{"-z?r?*Occdduoet ad;rgQ aaobJaJerad:Qd ?

. 4) aod: gCJoi g,oJD Xoodd sdd mol-t LS-' , u !,c3.:C; drlr 89,1.

5) a"do6 sdrer df;eou:od d.:Qeddsartogi'rd z.od: eloeddQ dio,l.

6) dr ddnd goJrolrQ dPearrtoe:r.

7) eru?.Jo1; doSd Oriocf aodded>?

8) €r ddnd gofroJrQ dio:r.

HeC - Br + AgF + H3C - F + AgBr

9) adoas"dl (cH3cHo) (J%ef (AIdol) xaog,eddeo golrri udddJ{d'

aadeod,oB.

10) o$ad at:tu6fd doddoo:od odq (Rickets) doeddl ud:{d?





fiilillll{iltll fiil lll

!r. * ddnd

2 elodrJd&d

^-J-

Sqrori-B

oindcmddn ocd) €EcrJer3

d.ooBd:dd

34 (NS)

qi8olnod: €d4oira(5x2=10)

erudOfu.J

11) qgoder d,n dd ooddeoS? ed> dda mo{doJ: d:ee3 o$ad domaab zredodd?

12) €@oo'-u!ror "aodd doedd z3$ udcb enarlridQ dio:,. doedd dd Q*agddobd gCroJrQ udou:0.

13) r.od: ddal !,ohdrlrd dd Soaodd K:5.5'10-laS-1 uRqd, edd erdr

deaaodoo$Q dodl &aobo.

14) aadea Eoa.

a) &oo$o (Ce) ++ w{drea eeoJrQ doeoio{d.

b) pd:aood pod:Ari, og{a" (Actinoid) er#ozddd) orod{a'

(Lanthanoid ) erdcoe3dgod dagnd.

15) .addoobr u{dp&d ?,igtuarcdl erOioef (Anisole) d drod deri d.9rd:{d?

.add mrro$ed goJJo$Q udou:o.





34 (NS) -4- llllllillilfiliiilltrit

16) o-omoJ:&d ia:eddmC dodd ryzrdcosr (Grignard) ez.praddd iaaC:Ood

razrorSdd (Ca rboxyl ic) vQdd dofno*oCQ ado,r,.

17) d* ddndd)rlqrl uoC>'erumddd dna.

a) drdd mrad*

b) uodoru3f dedandmo

18) uaror erCnpto (Cationic) d>ardddodded:? z.od: erumddd doa.

Sqnrl-C

lll. * dd8ddrJde} ohdoodo 6cd) €{rJed eru$otu. qi8oloodo €{olr^3 erodrldd:o odooAd:gid (5 x 3 = 15)

19) oo;oo:.:Od dareddcorid dradri 6d{d dB€ (Copper matte) oe:od Bdd

o{ddi ddobd dgobctdi adotu. (3)

2A) uxoaagd aOadd d,rjot ,r*d doiDodo$g e^,drlood da:eddcoridd;

ouoddzldooori sJdobo. (3)

21') a) udoe{co' ufrro"d; qio3oenae.:$dg

udou:o.

b) 'z^,OoJ:o"d (Oleum) JooJoerdof:d; dna

deri dolnoioqd? ia:eddea

(21

(1)





fi!ril i*ffi ilti fiil fiI_6_ 34 (NS)

22) dr ddnd da:eddeadd.{ dnrarrkop,r,.

2NaOH + Clr+ NaCl +.... + HrO

NarSO, + 2HCl+ 2NaCl + HrO +....

Ct, + 3% --!4I-+ ..

23) MnO2 &od KMnOo Q (Potassium Permanganate)

Ja:eddeoddd; z^: dor:0,

a)

b)

c)

(1)

(1)

(1)

derl dohoiodd:r

(3)

24) 3d- ddsdob dme-tdfgddc u{c1> gohddrddqnn derio{d ad? (2)

Ti4* e.:deorldc deordadamnd, sdd Cr3* odearidc dearob{a"n&qd.

uadea doa. (1)

25) d.d* uofr tuqod (VBT) d iaaoJ:CIod [NiCl4]2-d erora:8, ioddea d:d?

rao3eC: rbearldd: ado:r. (3)

[Co(NH. )4 (H2O)C|]Cl2 d IUPAC didQ udouo.

a)

b)

(1)

(21

26). a)

b) draado$ (Linkage) Jd>orldc:Q wzmdddoi dEod ado&.





34 (NS)

!v. * ddnd

elodrJdd)4

-6-

SzPrJ-D

ohdcmddn dlJo& €dcrid&{dooadrgid.

llNllllIIil llll iif Illf

en:$Otu. {edood: €d{oira ocdl

(3 x 5 = 15)

27)

b) aadaDr0e.

i) ogdead d:oore-:d (Molality)

ii) iabdoaid e-{d (lsotonic) agdearidc

29) a) €l ddnd Ja:eddead$ doed D?.Jd (EMF) "Q

d{ aaEo.

Mgr.l + Cu2* (0.0001 M) -+ Mg'* (0.001 M) + Cu151

dqd - Eilnr.^n = -2.37 V

ESrr*lc,=+0'34V'

b) i) doeepdq eobdrdd.i udoo:o.

ii) dda:eeob dPe>d aoddd erodded:?

a)

b)

idd doa68 zoerd Jode;d dddo$Q (Packing efficiency) eJ{ aaao. (3)

*)o deoQd zroe-:d #ddO e-od> pod:ad ddd>ea: dod

107.9 rgo/diaef erndrqd. €r +ila{eC: eroz3d *dd 408.6 pm un{d,

'add ;oo{do3rQ el{oaa INn : 6.022*1023 mol-1]. (2t

2S) a) aJoS&d dcaoUd zeod: 353.23K ad:{d. 1.80 r9o doddg ercolrrrld,

erolrreddcorlodd dddddi 90 q9o zJodo' ogddd$ ddn:,esad agdead

d;aoUd asod) 354.11 K rl dErf:{d. er ogdeadQ&d ddrd

(1)

(1)

(3)

(1)

(1)





34 (NS)t]tri it i$$it tili tit I IlI -7-

30) a) d**, gmadrlrd oaxaoJ:&d goiJo$ ed:dO,r,d (integrated) dg 6cnod

b) duuddeo dqcb (E" ) d.:eeJ derl$rdd doaad:dd.; aqJd dq V/S

dsgolrr JdoSoea;dd df,c:g udd: doeo:,. (21

31) a) cgdua4dDo dJQ Bdd & dOe.:dd dd:ad oln$coddo add:

(21

(21

d^o^Jdd& udouo.ao.t

.)eoBC: derl dt'rd aodded>? rod: en:mddd doc

deer eQdoededC: ndoeidol: r{sadoeg

udobo.

dea

b)

c)

erudOfu.J

V. * Ednd€rrJde} olDdoodd/a doeDo d{rJ€r3

6cc$ erodrJd&c doo6d:gld.

(expression)

({)

{Solood: €{d*(4x5=201

32) a) rr&rc)o *r€s z,igd.3""Q (tert-butyl bromide) $&ro3ro zaoruf,er

b)

c)

ueJ4eaaenn doderiDd S* 1 !,o$do$d dodrld ia:eddearldQ udou:o.

gobo$9

(21

(21

erudoloenlod

(1)

dptiri" goSr"lrQ adOa.

deloue{dd a€dgedeloeddddd

d.egoiDuadddq dJoe.





34 (NS) -B-

33) a) €idoaef (Ethanol) Ood diqed (Ethene)d;

&as r Oedd eo d $o1nd o-gde.* adox,.

llllllllfillllttitltll

ddcDd u{ deddt'rd

(3)

b) 4loiEef drQ eid€oaefd ddrd olDddJ d?*ri e'Qo$r ad? (21

34)

dDddoN" .(CH3COCH3) d drodri €e*ar o$Ed oeg dario{d?

(21Ca:eddea doa.

aucuer (Etard) goircbg erudCoeniod w{drd eeptadddQ diox,. (1)

35) a) uazf,rer cdJrf (carbyl amine) go3rojrQ ia:eddea dEod adotu' (21

b) {rsgerJoddd; ucoo'(Aniline) eJn erddarir:dd: deri? ia:eddea doa

(2)

c) coHs -X;i-' d IuPAC didq udouro. (1)

a) doerd

adox,.

d>:od''J

(Rosenmunds) erdddrco gofuCrQ Ja:eddca dSod

(21

b)

c)





fifiiliiltil tIIilit flil

36) a)

b)

-9- 34 (Ns)

erord,ger (Lactose) d daadrd dddo$di udc:0. (2)

i) edrld, er.):edo uQrldodded:? (1)

ii) d,r&6fd (Glycine) Hrr,f eycb&d xadnd, f,ngdQ udou:0. (1)

RNA c:g&d erdd DNA cigdd xadaddobd d-r*dQ dno,l. (1)

d*ir -6,6 d dofnodC:Q na:eddeadooori adot.

frdoerq&u'rldodded;? z.ocb eruaadd# doa.' 6eJ

ocdo.go' (2-methyl-l, 3-butadiene) d deJdo$d; r^:dou:o.

c)

(2)

(2)

(1)

37) a)

b)

c)





2.

3.

4.

34 (NS) fitiltlIgitrllliiil Ifil

lnstructions : 1.

(English Version)

The question paper has four parts. Att parts arecompulsory.

Part-A carries 10 marks. Each question carries one mark.

Paft-B carries 10 marks. Each question carries two marks.

Part-C carries 15 marks. Each question carries threemarks.

ParT-D carries 35 marks. Each question carries five marks.

Write balanced chemical equations and draw diagramswherever necessary.

l,Jse tog tabtes and simple calculator if necessary. (Use ofscientific calculator is not altowed.)

PART - A

Answer all the questions. Each question carries one mark. (Answer eachquestion in one word or in one sentence) : (10 x 1 = 10)

1) State Henry's law.

2) Van't Hoffs factor for a solution is less than one, what is the conclusiondrawn from it.

3) How many Faraday of electricity

ions to Mn2* ions?

required to reduce 1 mole of MnOo

lf the unit of rate constant of a reaction isorder.

mol-lLS-1 then mention its

-'10-

l.

IS

4)

5) Name a metal refined by Van Arkel method.





lillililljllllliil llll -11- 34 (NS)

6) Complete the following equation.

XeFu + HrO -+ .... . + 2HF .

7) What is an ambidentate ligand?

B) Name the following reaction.

H.C -Br+ AgF + H.C- F + AgBr.

9) Ethanal (CH3CHO) undergoes aldol condensation reaction. Give reason.

1o) Deficiency of which vitamin causes the disease ,,Rickets,,.

PART _ B

ll. Answer any five of the following. Each question carries 2 marks : (5 x 2 = 101

' 11) What is Frenkel defect? How does it affect density of the solid?

I

' 12) Draw a neat labelled diagram of Hr-O, fuel cell. Write the reactionoccurs at cathode of the cell.

r 13) A first order reaction is found to have a rate constant, K=S.Sx10-145-1.'' Find the half-life of the reaction.I

141 Give reason :,,,, d) Cerium (Ce) exhibits +4 oxidation state.

r b) Actinoid contraction is greater from element to etement thanlanthanoid contraction.

15) How anisole reacts with bromine in ethanoic acid? Write the chemicalequation for the reaction.





F

34 (NS) -12- fillllllfilllli lil ltl[

16) Explain the preparation of carboxylic acids from Grignard reagent. Giveequation.

17) Give an example each for

a) Artificial sweetening agents:

b) Narcotic analgesics.

18) What are cationic detergents? Give an example.

PART - C

lll. Answer any five of the following. Each question carries 3 marks : (5 x 3 = 15)

19) Explain the process of obtaining "blister copper" from "copper matte"' with equations

20) Write the equations involved in the manufacture of nitric acid by Ostwaldsprocess by maintaining reaction conditions

21) a) How is Ozonised oxygen prepared in the laboratory? Give equation.(21

(1)

22) Complete the following equations :

a) 2NaOH + Cl2 -+ NaCl + .... + HrO

b) NarSO. + 2HCl -+ 2NaCl+ HrO +....

c) Clr+3F2 -izgr( -+.....

b) Give the composition of "Oleum".

(1)

(1)

(1)





Iillillilllllililllll -13- 34 (NS)

24 How is potassium permanganate (KMnOo) prepared from MnOr? Writethe equations. (3)

24) Why 3d-series of elements acts as good catalyst?

Given reason : Ti4* salts are colourless where as Cr3* saltscoloured.

25) With the help of Valence Bond Theory UBT), explain hybridisation,geometry and magnetic property of [NiCl4]2-. (3)

26) a) Write the IUPAC name of : [Co(NH3)4 (H2O)Cl]Cl2 .

b) Explain linkage isomerism with example.

PART - D

lV. Answer any three of the following. Each question carries 5 marks :

(3x5=15)

a)

b)

(21

are(1)

(1)

(21

27) a) Calculate packing efficiency in simple cubic lattiee.

b) An element having atomic mass 107.9 u has FCC lattice. The edgelength of its unit cell is 408.6 pm. Calculate density of the unit cell.

[Given, NR : 6.022*1023mo1-11.

28\ a) The boiling point of benzene is 353.23 K. When 1.80 g of anon-volatile, non-ionisable solute was dissolved in 90 g of benzene,the boiling point raised to 354.11 K. Calculate molar mass of thesolute. [Ko for benzene = 2.53 K Kg mol-1].

b) Define :

i) Molality of a solution.

ii) lsotonic solutions.

(21

(3)

(3)

(1)

(1)





34 (NS)

2e) a)

30) a)

b)

-14-

Calculate e.m.f. of the cell for the reaction :

Mgr.l + cu2*(0.0001 M) -+ Mg'*(0.001 M)+ cu,,

Given that : Ei,nr.rrn = -2.37 V

ESrr*r., = +0.34 V.

i) State Kohlrausch law.

I'l What is meant by limiting molar conductance.

reaction.

ilil iilIIiI l|tiiil Ittl

b)

(3)

(1)

(1)

(3)Derive an integrated rate equation for rate constant of a first order

Draw a graph of potential energy ViS reaction co-ordinates showingthe effect of catalyst on activation energy (E, ) of a reaction . (21

Write any two differences between lyophilic and lyophobic colloids.(21

What is heterogeneous catalysis? Give an example. (21

Give an expression for Freundlich adsorption isotherm. (1)

V. Answer any four of the following. Each question carries 5 marks : (4 x 5 = 20)

32) a) Write the equations for the steps in Sru1 mechanism of the

conversion of tert-Butyl bromide into tert-Butyl alcohol. (21

(21b) Explain Fittig reaction.

c) Name the reagent used in the dehydrohalogenation of hatoatkanes.(1)

33) a) Write the mechanism of acid catalysed dehydration of ethano! to(3)ethene.

b) Between phenol and alcohol which is more acidic? Why? (21

31) a)

b)

c)





ilIri'ifiitilfiiixI;tl34) a)

b)

c)

34 (NS)

Explain Rosenmund reduction with equation. (21

How does propanone (cH3cocH3 ) reacts with hydrazine? Giveequation. elName an oxidising agent used in the Etard's reaction. (1)

Explain carbyl amine reaction with equation.

How does, nitrobenzene is reduced to aniline? Give equation.

Write the IUPAC name of

coHs -f -cH.CH.

-1 5-

(2)

(21

35) a)

b)

c)

(1)

36) a)

b)

c)

Write Haworth structure of "Lactose".

i) What are non-essential amino acids?

ii) Write Zwitter ionic structure of "glycine".

Name the nitrogenous base present in RNA but not in DNA.

Explain the preparation of Nylon-6, 6 with equation.

What are thermoplastic polymers? Give an example-

Write the structure of isoprene (2-methyl-1, 3-butadiene).

(2)

(1)

(1)

(f)

37) a)

b)

c)

(2)

(21

(1)





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