12-cet
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Unit-Test Subject Duration Class Marks
8 Chemistry 1.5 hr XII
1 Marks
1. !or an amine "#$%& 'rite an e()ression to in*icate its basic stren+th ,1
%. i/e one use o0 uaternary ammonium salts. ,1
2. i/e one e(am)le o0 $o3mann 4 romami*e reaction ,1
. Distin+uish bet'een ethylamine an* aniline. ,1
5. The IU67C name o0 secon*ary amine ha/in+ lo'est molecular mass is .
,1
9. i/e an e(am)le o0 *ia:oti:ation ,1
;. <hat is *enature* alcohol=
8.Mention t'o im)ortant uses o0 methanol.
>. ?()lain the 0ollo'in+ +i/in+ one e(am)le. !rie*el-Cra0ts acetylation o0 anisole
1@. Illustrate the 0ollo'in+ reaction by +i/in+ a chemical euation.<illiamsonAssynthesis.
1%. 6henyl methyl ether reacts 'ith $I to +i/e )henol an* methyl io*i*e an* not
io*i*e ben:ene an* methyl alcohol. <hy=
12.i/e chemical tests to *istin+uish bet'een )henol an* ben:oic aci*.
1. Illustrate the 0ollo'in+ reaction +i/in+ a suitable e(am)leB Decarbo(ylation.
15.Dra' the structure o0 the 0ollo'in+ com)oun*. $e(ane-1& 9-*ioic aci*.
19.Illustrate the 0ollo'in+ name reaction +i/in+ suitable e(am)le $ell-olhar*-
Eelinsky reaction.
1;.$o' 'oul* you com)lete the 0ollo'in+ obser/ation= <rite the com)leteeuation. en:oic aci* to m-nitroben:yl alcohol.
18.<rite the structure o0 %-F%-chloro)henylG-1-io*ooctane.
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1>.<rite the structure o0 the 0ollo'in+ com)oun* 1-bromo--sec butyl-%-methylben:ene.
%@.<rite the structure o0 the 0ollo'in+ or+anic com)oun* %-chloro-2-methyl)entane.
%1.<hich 'ill react 0aster in S#% *is)lacement& 1-bromo)entane or %-bromo)entane an* 'hy=
%%.<rite the structure o0 the 0ollo'in+ com)oun* 2-F-chloro)henylG-%-methyl)ro)ane.
% marks
1. <rite the structure o0 %-F%-chloro)henylG-1-io*ooctane.%. <rite the structure o0 the 0ollo'in+ com)oun* 1-bromo--sec butyl-%-methyl
ben:ene.2. <rite the structure o0 the 0ollo'in+ or+anic com)oun* %-chloro-2-
methyl)entane.. <hich 'ill react 0aster in S#% *is)lacement& 1-bromo)entane or %-
bromo)entane an* 'hy=5. <rite the structure o0 the 0ollo'in+ com)oun* 2-F-chloro)henylG-%-methyl
)ro)ane.9. ?()lain the mechanism o0 a** catalyse* hy*ration o0 an alkene to 0orm
corres)on*in+ alcohol.;. $o' 'oul* you obtain
FiG )icric aci* 0rom )henol=FiiG %-methyl )ro)anol 0rom %-methyl )ro)ene=8. 7ccount 0or the 0ollo'in+FiG 6ro)anol has hi+her boilin+ )oint than butane.FiiG Hrtho-nitro)henol is more aci*ic than ortho-metho(y )henolFiiiG ?()lain the mechanism o0 a nucleo)hilic attack on the carbonyl +rou) o0
an al*ehy*e or a ketone.Fi/G 7lthou+h )heno(i*e ion has more number o0 resonatin+ structures than
carbo(ylate ion& carbo(ylic aci* is a stron+er aci* than )henol. i/e t'oreasons.
>. $o' 'ill you carry out the 0ollo'in+ con/ersions=FiG 7cetylene to acetic aci*
FiiG Toluene to m-nitroben:oic 7ci*
[email protected] is *icult to )re)are )ure amines by ammonolysis o0 alkylhali*es. ,%
11. 7mines ha/e hi+her boilin+ )oints than hy*rocarbons o0 similar molecular
mass.,%
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