Download PTU (I.K. Gujral Punjab Technical University Jalandhar (IKGPTU) B.Sc. in Biotechnology 2020 March Previous Question Papers
Roll No. Total No. of Pages : 02
Total No. of Questions : 09
B.Sc.(BT) (2014 to 2017) (Sem.?1)
INORGANIC CHEMISTRY
Subject Code : BSBT-103
M.Code : 47022
Time : 3 Hrs. Max. Marks : 60
INSTRUCTIONS TO CANDIDATES :
1. SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks
each.
2. SECTION-B contains FIVE questions carrying FIVE marks each and students
have to attempt any FOUR questions.
3. SECTION-C contains THREE questions carrying TEN marks each and students
have to attempt any TWO questions.
SECTION-A
1) Answer briefly :
(a) Which element has higher atomic volume Na or K and Why?
(b) Explain why electron affinities of Halogens are the highest?
(c) Why do noble gases exist as monoatomic?
(d) Discuss the geometry of SF
6
molecule on the basis of VSEPR theory.
(e) Explain the difference in bond angles of NH
3
and NF
3
.
(f) Define optical isomerism with a suitable example.
(g) Discuss the differences between inter and intramolecular hydrogen bonding with
examples.
(h) Define paramagnetism and anti-ferromagnetism.
(i) Discuss the important postulates of VBT.
(j) What is the importance of Fajan?s rules in bonding?
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1 | M-47022 (S2)-828
Roll No. Total No. of Pages : 02
Total No. of Questions : 09
B.Sc.(BT) (2014 to 2017) (Sem.?1)
INORGANIC CHEMISTRY
Subject Code : BSBT-103
M.Code : 47022
Time : 3 Hrs. Max. Marks : 60
INSTRUCTIONS TO CANDIDATES :
1. SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks
each.
2. SECTION-B contains FIVE questions carrying FIVE marks each and students
have to attempt any FOUR questions.
3. SECTION-C contains THREE questions carrying TEN marks each and students
have to attempt any TWO questions.
SECTION-A
1) Answer briefly :
(a) Which element has higher atomic volume Na or K and Why?
(b) Explain why electron affinities of Halogens are the highest?
(c) Why do noble gases exist as monoatomic?
(d) Discuss the geometry of SF
6
molecule on the basis of VSEPR theory.
(e) Explain the difference in bond angles of NH
3
and NF
3
.
(f) Define optical isomerism with a suitable example.
(g) Discuss the differences between inter and intramolecular hydrogen bonding with
examples.
(h) Define paramagnetism and anti-ferromagnetism.
(i) Discuss the important postulates of VBT.
(j) What is the importance of Fajan?s rules in bonding?
2 | M-47022 (S2)-828
SECTION-B
2. What do you understand by the terms resonance and resonance energy? What are the
essential conditions for writing resonating structures?
3. Using VSEPR theory, explain the structures of SF
4
, ClF
3
and H
2
O in details.
4. With the help of MOT explain why bond length of CO
+
is larger than that of CO?
5. Discuss the basic postulates of Werner?s co-ordination theory with suitable examples.
6. Discuss the limitations of VBT and postulates of MOT in covalent bonding.
SECTION-C
7. (a) Define electronegativity and discuss Pauling?s scale of electronegativity.
(b) Define ionisation, hydrate and linkage isomerism in co-ordination compounds with
suitable examples of each of them.
8. (a) Discuss sp
3
d
3
and sp
2
hybridizations in details with examples.
(b) Discuss postulates of CFT in details. What are labile and inert complexes?
9. (a) Compare the stability of N
2
and O
2
molecules on the basis of MOT.
(b) What are isoelectronic species? Give an example of the molecule isoelectronic with
CO.
NOTE : Disclosure of identity by writing mobile number or making passing request on any
page of Answer sheet will lead to UMC against the Student.
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This post was last modified on 02 April 2020