Gujarat University 2005 B.Sc Chemistry Third Year - - VII - Question Paper
Seat No. :
TB-01
Chemistry Paper-VII
Time : 3 Hours] [Total Marks: 70
ij'Vll : (1) -.i UM-ll .Si iL."LL $.
(2) >"HSLl HL>HL =Hi UM-ll .Si &?llcl .
1. (=H) H-U3.HLSI HL sUfl ilMliRSL HcHil icQUHL LUi. ilMliSL C-LL rtlcH
L-ll CL rl&i () rL3.L CL-li m\. (10)
(H) il-Rill USLlC-LMl i'lLlCrLL LLliL-Ll -ilW $. [$LLllL[LL M-U iSL-il
HLHrLHl SirWl i-L-L ilLLc|l. (4)
1. (=H) W = C11 + C22 HL [-.-LlLi (10)
H11- ES11 H21- ES21 H12- ES12 H22- ES22
= 0 , 5lCLL*iHL-l ilrl-Ll ill[LrL iL.
(H) [i[$Li-i i Li-il ciLL"LL ixlL. >hL PL-t ClL LL ciiidRi L $. ill[LrL
iL. (4)
2. (=H) iliLirll -LLcLL- (VB)-l LHl. H2 Sl-l HHlSL iLWicii =H-l W = W
iLi + XW LllC-Li ililiSL Lcii. (7)
WUcll
3. (H) n - HU-AL&-L HLHL I-L HL LWL. (S)
(H) SN1CB U'H U. -ilH CL"il. (S) (h) .l"{ U[iM tf-t k {l[{[{ ll 6&L3L L[-L l{>lcll. (4)
4. (H) HLr{ MH-Cl-l c.iw{L hLU. Fe2(CO)9 H-i Fe3(CO)12 -U HHL3L LWLI (S)
(H) Hhk IL-LL H-l lhll c{{{h U -lll CL"il. (S) (h) -{- H[L-t RMLcL Ll!. (4)
WWi
4. (H) hLLl[-lCl LtfLtfL U -ill Cl"il. (S)
(H) '{-{'bH, lL-lll H- H--lH Ul LWLcl. (4) (h) Hc{[;l[-lll H- {[Lll HL-{-iL hLPlh W-I-I hi. HlC-l HLU. (S)
5. (H) LM-L hLL H- H[-l L"Lrl hLL-fl. H-Uq.H ciULdL -{hi WL. (S)
(H) Ltfl>H hH H-l >{ iR h -l Cl"il. ()
(h) iUlh L-Cl G3 tL-HL -LrlL -{hLL-i Hl -il Cl"il. (S)
WWi
5. (H) LLilllhL (H-.cLI>L) LWLI (S)
(H) h-k LB-LHM clll 6cUL&-tHl LL&LH\ H- km&LH. ll. ()
(h) clL-{ U-HL HCl { ? !L-l[{h H-Hh. U h -l Cl"il. (S)
Time : 3 Hours] [Total Marks: 70
Instructions : (1) All questions carry equal marks.
(2) Figures to the right indicate marks.
1. (A) Give Schrdinger wave equation in polar form. Separate equation from it and
obtain () wave functions as its solution. (10)
(B) Show that, degeneracy is a consequence of symmetry properties in case of
particle in a three dimensional box. (4)
OR
(10)
22
H21- ES21 H22- ES22
H11- ES11 H12- ES12
1. (A) For Y = C11 + C22 determinant
= 0, prove it by variation method.
(B) Define Hermitian operator. Prove that the eigen values of Hermitian operator
are real. (4)
2. (A) Explain bonding in H2 molecule on the basis of VB theory and obtain following
relation. vb = covalent +W ionic. (7)
OR
2. (A) Discuss MO theory for bonding in case of BeCl2 & BCl3. (7) (B) Discuss magnetic properties of [Ir(F)6]4 - and [V(CN)6]3 - complex ions. MO
diagram is necessary. (7)
3. (A) Write note on Labile and Inert complexes. (5)
(A)
Explain trans effect on the basis of n - bonding theory.
(5)
(B)
Write note on SN1CB - Mechanism.
(5)
(C)
Explain with suitable example inner sphere mechanism in Redox-reactions.
(4)
(A)
Define Metal Carbonyl. Explain bonding in case of Fe2(CO)9 and Fe3(CO)12.
(5)
(B)
Write note on Magnetic susceptibility and Magnetic behaviour.
(5)
(C)
Discuss principles of Hard and Soft acids and bases.
OR
(4)
(A)
Write note on Carbonyl hydrides.
(5)
(B)
Explain the terms paramagnetism, ferromagnetism and antiferromagnetism.
(4)
(C)
Give short account on OMC of Aluminium and Magnesium.
(5)
(A)
Give ingredients used to manufacture hard glass and flint glass.
(3)
(B)
Write note on hydrogen cell and hydrogen energy.
(6)
(C)
Discuss the damage in the layer of O3 due to plastic industry pollution.
OR
(5)
(A)
Write a note on Annealing.
(3)
(B)
Discuss an advantages and disadvantages of electric production from nuclear
energy.
(6)
(C)
What is air pollution ? Write a note on primary pollutants.
(5)
TB-01 4
(=H) ilCL (Labile) =H-l [-L'lL (Inert) ililSlL -tlU CL"il. (5)
(H) G&lSl .[rL L-il =Hi3. aWld rl-LL ri-Ll GLiLLlrLl LUi. (5)
(i) iilil =Hi3. G&lSl ilferl ilL>'LclL. (4)
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| Earning: Approval pending. |
