al/2020/02/t kog;gjpg;g upikailaj / all rights reserved · 2021. 2. 18. · kiwna 250kj mol-1,170...
TRANSCRIPT
AL/2020/02/T
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gFjp-I
1. gpd;tUk; mad;fspy; vjd; fyg;Gepiy Vidatw;wpy; ,Ue;J NtWgLfpd;wJ?
(1) CO32-
(2) NO3- (3) IO3
- (4) BO3
3- (5) NO2
-
2. gpd;tUk; %yfq;fspy; vJ(3,2,0,−1
2) vDk; rf;jpr;nrhl;nlz; njhilia nfhz;bUf;f
$baJ? (1)Si (2)Mg (3)P (4)As (5)Cl
3. jug;gl;l Nru;itapd; IUPAC ngauPL ahJ?
(1) 1-methylhex-5-yn-1,4-dione.
(2) methyl 4-oxohex-5-yn oate.
(3) methyl 4-onehex-5-ynoate.
(4) methyl 4-formylhex-5-ynoate.
(5) methyl 5-oxohex-6-ynoate.
mwpTWj;jy;fs; :
,t;tpdhj;jhs;fs; 7 gf;fq;fspy; 10 gy;Nju;T> 1 mikg;Gf;fl;Liu> 1 fl;Liu tpdhf;fis nfhz;lJ.
vy;yh tpdhf;fSf;Fk; tpil jUf.
jug;gl;Ls;s ,lj;jpy; ckJ Rl;nlz;iz vOJf.
gFjp-I 1 njhlf;fk; 10 tiuahd tpdhf;fs; xt;nthd;wpYk; (1),(2),(3),(4),(5) vd ,yf;fkplg;gl;l tpilfspy; rupahd my;yJ kpfg; nghUj;jkhd tpilia njupT nra;f.
mfpy thA khwpyp R = 8.314 J K-1mol-1
mtfhjNuh khwpyp NA = 6.022×1023 mol-1
gpshq;fpd; khwpyp h = 6.626×10-34 Js
xspapd; Ntfk; c = 3×108 ms-1
H−C≡C−C−CH2−CH2−C−O−CH3 ║ O
║ O
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4. mNwhkw;wpf; Nru;it(A) C8H8O2 vDk; %yf;$w;Wr; #j;jpuj;ij cilaJ. ,r;Nru;it gpd;tUk; jhf;fq;fis fhl;Lk;.
Na cld; jhf;fj;jpy; H2(g) I cUthf;Fk;.
Na2CO3 cld; jhf;fk; GupahJ.
eLepiyahd Fe3+ fiurYld; nrt;T+jh epwj;ij jUk;. Nru;it AMf ,Uf;f $baJ?
5. gpd;tUk; jhf;fj;ijf; fUJf.
,JNthu; xUgb kPSk; jhf;fkhFk;. Kw;jhf;fj;jpdJk; gpw;jhf;fj;jpdJk; Vtw;rf;jpfs; KiwNa 250kJ mol-1 ,170 kJ mol-1MFk;. xU Fwpj;j Cf;fpapd; Nru;f;ifahy; Vtw;rf;jp 90 kJ mol-1 My; Fiwe;jJ. Cf;fp Kd;dpiyapy; jhf;fj;jpd; ntg;g cs;Siw khw;wk;?
(1) -80 kJ mol-1 (2) -30 kJ mol-1 (3)+80 kJ mol-1 (4)+190 kJ mol-1 (5)+30 kJ mol-1
6. gpd;tUk; Nru;itr; Nrhbfspy; vJ ePu;f;fiury; epiyapy; ePyg;ghrpr;rhaj;jhis rptg;ghf khw;Wk;?
(1)NH4NO3,NH4ClO3 (2)CH3COONa,Na2CO3 (3)NH4Cl,HCOONa
(4)Na3PO4,NH4NO3 (5)CH3COONH4,CH3COONa
7. gpd;tUk; $w;Wf;fSs; rupahdit? a) ve;jpugp mjpfupg;Gld; epfOk; xU Gw ntg;gj;jhf;fk; vg;nghOJk; Rakw;wJ. b) ve;jpugp FiwTld; epfOk; xU mf ntg;gj;jhf;fk; vg;nghOJk; RakhdJ. c) ve;jpugp mjpfupg;Gld; epfOk; xU mf ntg;g khw;wk; cau; ntg;gepiyapy;
RakhdJ. d) ve;jpugp FiwTld; epfOk; xU Gw ntg;g khw;wk; jho; ntg;gepiyapy; RakhdJ.
8. vDk; jhf;fj;ij fUJf.
gpd;tUk; $w;Wf;fspy; rupahdit?
(a) CH3CHO ,y; ehd;F 𝛼 [jurd;fs; cs;sd.
(b) C(p) ,Ys;s 𝛼 [jurd;fs; ,yFtpy; fhuj;jhy; mfw;wg;glyhk;.
(c) ,J xU fUehl;l $l;ly; jhf;fk;.
(d) C(q)fhgd; mZthdJ sp3fyg;gpy; cs;sJ.
9. $w;W 1− ve;epge;jidapYk; Zn MdJ H2SO4 cld; jhf;fp H2 thAit tpLtpf;Fk;.
$w;W 2− kpd; ,urhad njhlupy; Zn IjurDf;F NkNy cs;sJ.
10. $w;W 1− ,urhad rkepiy xd;wpy; QC>KC vdpy; jhf;fk; Kd;Ndhf;fpa jpirapy; rhjfkhf;fg;gLk;.
$w;W 2− XH rkdpiyj;jhf;fj;jpw;fhd Kc MdJ ntg;gepiyapy ; kl;LNk jq;fpAs;s khwpyp MFk;.
COOCH3
(1)
CH2COOH
(2)
COOH
CH3
(3)
O−CH=CH2
OH
(4)
O−CH=CH−CH3
(5)
2(g) 2(g) (g)X +Y 2XY
CH3CHO dil NaoHሱۛ ۛۛ ሮۛ CH3−CH−CH2−CHO
(p)
│ OH
(q)
*****
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gFjp II
mikg;G fl;Liu tpdh a)gpd;tUk; %yfq;fisf; fUj;jpw; nfhs;f.
Cr, Be, B, Cl, N, F, C, Ne ,S
NkNy jug;gl;l %yfq;fisf; nfhz;L gpd;tUk; ntw;wplq;fis epug;Gf.
1. %d;W gpwjpUg;gq;fisf; nfhz;l %yfk; ....................
2. vk; %yfj;jpd; FNshiul;L ePUld; jhf;Fk; NghJ cUthFk; gjhu;j;jk; ntspw;Wk;
,ay;Gfisf; fhl;Lk; ....................
3. NaOH cldhd jhf;fj;jpd; NghJ vupaf;$ba thAit ntsptpLk; %yfk; ....................
4. xNu xl;rpNaw;w vz;izAk; NtWgl;l epwq;fisAk; nfhz;l ,uz;L xl;rp
mdad;fis cUthf;Fk; %yfk; ....................
5. mjp cau; xl;rpNaw;w epiyapYs;s %yfq;fis cUthf;Fk; %yfk;. ....................
6. malkhd epakpg;gpy; gad;gLj;Jk; Nru;it xd;iw Na2SO3 cld; cUthf;Fk;
%yfk;. ...............
b) (i)%yf;$W C2H3N3O ,w;F Vw;Wf;nfhs;sj;jf;f Yhapapd; fl;likg;ig tiuf.mjd;
mbg;gilf; fl;likg;G fPNo jug;gl;Ls;sJ.
Fwpg;G : CN̂N gpizg;Gf; Nfhzk; mz;zsthf 1180 kw;Wk; N−N gpizg;G ePsq;fs;
xd;Wf;nfhd;W rkdw;wJ vdTk; fUJf.
(ii)Nru;it C2H3O5N ,w;F kpfTk; cWjpahd Yhapapd; Gs;sp-Nfhl;Lf; fl;likg;G
jug;gl;Ls;sJ.,k;%yf;$Wf;F NkYk; ,U gupTf;fl;likg;Gf;fis tiuf. tiue;j
fl;likg;gpy; cWjpaw;w fl;likg;gpd; fPo; “cWjpaw;wJ” vd vOJf.
║ O
/ ׀H
/
H ׀
H−C – C – O – O −N−O - +
. . . .
. . . . . . . . :
: : : :
║ O
/
H – C − C−N−N−N
O
│ H │
│
H
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(iii)gpd;tUk; Yhaprpd; fl;likg;ig mbg;gilahff; nfhz;L gpd;tUk; ml;ltizapy;
jug;gl;Ls;s N,C,O mZf;fspd;,
1)mZitr;Rw;wpAs;s VSEPR Nrhbfspd; vz;zpf;if
2)mZitr;Rw;wpAs;s ,yj;jpud; Nrhbf;Nfj;jpuf;fzpjk;
3)mZitr;Rw;wpAs;s tbtk;
4)mZtpd; fyg;ghf;fk;
vd;gtw;iw vOJf.
mZf;fs; gpd;tUkhW ,yf;fkplg;gl;Ls;sd.
mZ N1 C2 O3 O5
mZitr;Rw;wpAs;s
VSEPRNrhbfspd;
vz;zpf;if
,yj;jpud;
Nrhbf;Nfj;jpuf;fzpjk;
mZitr;Rw;wpAs;s
tbtk;
mZtpd; fyg;ghf;fk;
(iv)NkNy (iii) ,y; jug;gl;l Yhaprpd; fl;likg;gpy; gpd;tUk; 𝜎gpizg;Gfspd;
cUthf;fj;Jld; rk;ge;jg;l;l mZ fyg;gpd xgpw;wy;fis ,dq;fhz;f.
(mZf;fis ,yf;fkply; (iii) ,y; cs;sthwhFk;)
1)N1 − C2 N1 C2
2)C2 − O3 C2 O3
3)O3 − O4 O3 O4
4)O4 − O5 O4 O5
5)O5 − H O5 H
(v) NkNy (iii) ,y; jug;gl;l Yhaprpd; fl;likg;gpy; gpd;tUk; 𝜋gpizg;Gfspd;
cUthf;fj;Jld; rk;ge;jg;l;l mZ xgpw;wy;fis ,dq;fhz;f.
N = C – O – O – O − H . . +/ -
/ . . . . . . . . . . . . . . . .
N − C – O – O – O − H 1
1
2
1
3
1
4
1
5
1
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(mZf;fis ,yf;fkply; (iii) ,y; cs;sthwhFk;)
1)N1 − C2 N1 C2
2)O3 − O4 O3 O4
c)gpd;tUk; Nru;itfis milg;Gf;Fwpfspy; jug;gl;l mtw;wpd; ,ay;Gfs; mjpfupf;Fk;
tupirapy; vOJf.
(i) H2O2 , HF , NH3 , H2O (nfhjpepiy)
(ii) CO , CO2 ,CO32- , C2O4
2- (C-O gpizg;G ePsk;)
(iii)Li, Na, Mg, Ca (2k; madhf;fw;rf;jp)
*****
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gFjp II
fl;Liu tpdh 1) (a) M vd;gJ 3𝑑 njhFg;ig Nru;e;j jhz;ly; cNyhfk;. ,J Ijhd 𝐻𝐶𝑙 cld; jhf;fk; Gupe;J
,sk; rptg;G epwkhd 𝐴 vDk; fiuriyAk; 𝐵 vDk; epwkw;w thAitAk; cUthf;Fk;. fiury;
𝐴, 𝑃𝑏2𝑂 Kd;dpiyapy; nrwpe;j 𝐻𝑁𝑂3 cld; gupfupf;f nra;ag;gLk; NghJ 𝐶 vDk; Cjh epwkhd
mad; fiury; Njhd;Wk;. fiury; 𝐶 kpifahd nrwpe;j 𝐾𝑂𝐻(𝑎𝑞) cld jhf;fkilar; nra;Ak;
;NghJ gr;ir epwf;fiury; 𝐷 IAk; epwkw;w thA E IAk; jUk;. fiury; A ,w;F KOH(aq) ,d;
xU gFjp Nru;f;Fk; NghJ ntz;zpw tPo;gbT F ngwg;gLk;. F ,w;F H2O2 fiury; Nru;j;j NghJ
G vDk; fgpy epw tPo;gbT Njhd;wpaJ. G, Conc HCl cld; epwkw;w thA H Ij; jUk;. ngwg;gl;l
gr;ir epw fiury; D ,w;F mkpyk; Nrh;f;Fk; NghJ kPz;Lk; Cjh epwf; fiury; C Ak; fgpy epw
tPo;gbT G Ak; Njhd;wpaJ.
(i) A,B,E,F,G,H tiuahd Nru;itfisAk; C,D Mfpa mad;fisAk; ,dq;fhz;f.
(ii) eilngw;w vy;yh jhf;fq;fSf;Fkhd rkd; nra;ag;gl;l rkd;ghLfisj; jUf.
(7.0Gs;spfs;)
(b) fw;wad;fs; %d;Wk; xU md;daDk; mlq;fpAs;s X vDk; ePu;f;fiury;> gpd;tUk; Kiwf;Nfw;g
gupNrhjidfSf;F cl;gLj;jg;gl;lJ. X ,y; mlq;fpAs;s mk;%d;W fw;waidAk; xU
md;daidAk; ,dq;fhz;f.
gupNrhjid mtjhdk;
(1) X ePu;f;fiurYf;F (CH3COO)2Pb fiury;
Nru;f;fg;gl;lJ. gpd; ntg;gNkw;wg;gl;lJ.
nts;is epw tPo;gbT fpilj;jJ.
ntg;gNkw;wpaJk; tPo;gbT fiue;jJ.
(2) X fiurYf;F NH4Cl/NH4OH fiury;
Nru;j;J gpd; tbf;fg;gl;lJ.
epw tPo;gbTk; epwkw;w fiurYk;
fpilj;jJ.
(3) NkNy (2) ,y; tbf;fg;gl;l
fiurypD}lhf H2S thA nrYj;jg;gl;lJ.
nts;is epw tPo;gbT fpilj;jJ.
(4) NkNy (2) ,y; ngwg;gl;l epwtPo;gbT
NaOH,Ds; fiuj;J tbf;fg;gl;lJ.
nrq;fgpy tPo;gbTk; epwkw;w
tbjputKk; fpilj;jJ.
(5)
NkNy (4) ,y; ngwg;gl;l nrq;fgpy
tPo;gbTIjhd H2SO4 ,y; fiuj;J
ngwg;gl;l fiurYf;F ryprpypf;fkpyk;
Nru;f;fg;gl;lJ.
Cjh epwf; fiury; fpilj;jJ.
(6) NkNy(4) ,y; fpilj;j epwkw;w
fiurYf;F NH4Cl Nru;f;fg;gl;lJ. nts;is epw tPo;gbT fpilj;jJ.
(7) NkNy (6) ,y; ngwg;gl;l nts;is epw
tPo;gbTf;F kpif NaOH Nru;f;fg;gl;lJ.
tPo;gbT fiue;J epwkw;w fiury;
fpilj;jJ.
(8)
NkNy (3) ,y; ngwg;gl;l nts;is epw
tPo;gbT HCl ,y; fiuj;J NaOH
Jspj;Jspahfr; Nru;f;fg;gl;lJ.
nts;is epw tPo;gbT fpilj;jJ.
mtjhdq;fis tpsf;fp>
(i) md;dad;fis ,dq;fhz;f.
(ii) %d;W fw;wad;fis ,dq;fhz;f. (4.0 Gs;spfs;)
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(c) H2S fhuzkhfj; Ju;ehw;wk; tPrpa fpzw;W ePu; khjpupnahd;wpy; H2S ,d; nrwpT 68ppm Mff;
fhzg;gl;lJ. 2000dm3 ,f;fpzw;W ePiuf; nfhz;Ls;s ePu;j;jhq;fpnahd;wpDs; Cl2(g) nrYj;jg;gl;L
H2S Kw;whf mfw;wg;gl;lJ. ,jd; NghJ kpifahd msT Cl2(g) nrYj;jg;gl;lJ. kpifahfr;
nrYj;jg;gl;l Cl2(g) fzpg;gjw;F gpd;tUk; nray;Kiw nra;ag;gl;lJ. 50.0cm3 ,e;ePiu vLj;J
kpifahd KI(aq) Nru;f;fg;gl;lJ. ntspNaWk; maBd; 0.01moldm-3 Na2S2O3 fiurYld; khg;nghUs;
fhl;b Kd;dpiyapy; epakpj;j NghJ mjd; 10.0 cm3 Njitg;gl;lJ.
i. NkYs;s gbKiwapy; eilngWk; jhf;fq;fSf;F rkd; nra;j rkd;ghLfisj; jUf.
ii. H2S ,id mfw;wj; Njitahd Mff; Fiwe;j Cl2(g) d; msT fpuhkpy; ahJ?
iii. NkYs;s gbKiwapy; Nkyjpfkhf tpepNahfpf;fg;gl;l Cl2(g) d; jpzpT fpuhkpy; ahJ?
iv. nkhj;jkhf tpepNahfpf;fg;gl;l Cl2(g) d; jpzpT ahJ? (Cl=35.5)
(4.0 Gs;spfs;)
*****