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20th August 2014, 01:32 PM
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Join Date: Apr 2013
Re: Hyderabad University Chemistry

The written test for admission to the Chemistry M.Sc. degree course consists of objective type questions. Students are expected to have sound knowledge of B.Sc. level general Chemistry and basic Mathematics. The question paper for the test consists of two parts. Part I carries 25 marks and Part II carries 75 marks. The question paper consists of multiple choice questions and carries negative marks for wrong answers.

Model Questions for M.Sc. Chemistry - Entrance Exam
1. The reaction of 10.23 g of Fe2O3 with excess carbon, Fe2O3 + 3C → 2Fe + 3CO yields
8.94 g of Fe. What is the percentage of yield? (At. wts: Fe = 55.05, C = 12.01, O = 16.00)
(A) 78% (B) 84% (C) 80 % (D) 76%

2. A normal to the surface 0 3 2 8 2 2 2 x yz + y − xz + z = at the point (1, 2, −1) is
(A) i + 2 (B) j −k −6i +11j +14k
(C) 3i +11j +14k (D) 11i −6 j +14k

3. How many electrons are transferred in the following reaction?
2Zn(s) + Ag2O2(s) + 2H2O(l) + 4OH−
(aq) 2Ag(s) + 2Zn(OH)4
2−
(aq)
(A) 4 (B) 6 (C) 2 (D) 3

4. The difference in energy between the axial and the equatorial conformations of
t-butylcyclohexane is
(A) 1 kcal/mol (B) 20 kcal/mol (C) 15 kcal/mol (D) 6 kcal/mol


2
5. The maximum number of phases that can coexist in equilibrium in a binary system is
(A) 4 (B) 3 (C) 2 (D) 0

6. The points A (1, −1), B (3, 2) and C (7, 8) form
(A) An equilateral triangle (B) An isosceles triangle
(C) A curve (D) A straight line

7. A hydrate of nickel bromide has the formula NiBr2•xH2O. 18.2 g of a sample of this hydrate
is heated to a constant weight of 14.6 g. The value of x is (At. wts: Ni = 58.7, Br = 79.9,
O = 16.0, H = 1.0)
(A) 6 (B) 3 (C) 1 (D) 4
8. The enol content of CH3COCH2CO2Et in hexane is 46% and that in water is 0.4%. The
reason for the above observation is as follows:
(A) Intermolecular hydrogen bonding is stabilized by hexane.
(B) Intramolecular hydrogen bonding is stabilized by water.
(C) Intramolecular hydrogen bonding is destabilized by water.
(D) CH3COCH2CO2Et dissolves in hexane completely.

9. A three-fold increase of the pressure affects the yield of the following reaction
at equilibrium by a
(A) nine-fold increase. (B) six-fold increase.
(C) nine-fold decrease. (D) three-fold increase.

10. The graph of 0 4 9 16 18 29 2 2 x − y − x + y − = represents
(A) a parabola (B) a hyperbola (C) an ellipse (D) a circle

11. Structure of carbon suboxide (C3O2) is
(A) tetrahedron (B) bent (C) trigonal pyramid (D) linear 12. Identify Sandmeyer reaction from the following
N2 (g) + 3 H2 (g) 2 NH3 (g)
3

(A)
NH2 NH2
Br


(B)
NH2 NH2
COCH3
(C) NH2
HN
H
N (D) NH2 CN

13. The nearest cation-anion distance in a crystal which adopts the NaCl (rocksalt) structure is
2.5 Å. The nearest cation-cation distance is
(A) equal to the nearest anion-anion distance. (B) 3.54 Å.
(C) 2
a where ‘a’ is the unit cell length. (D) all of the above.

14. = − + − +
− + −
→∞ x x x x
x x x
x 3 5 2
7 4 2 13 lim 9 8 2
9 5

(A) – 7/3 (B) 0 (C) ∞ (D) – 13/2

15. High thermal stabilities of transition metal carbonyls is due to
(A) non availability of d-orbital on carbon.
(B) formation of ionic bond between CO and metal.
(C) interaction of filled metal d-orbital with the empty antibonding π* orbital of CO.
(D) covalent bonds of oxygen in CO with antibonding π* orbital of metals.

16. The intermediate involved in the identification of glucose in Molisch test is
(A)
O CHO
(B)
OHC O CHO

(C)
O HO OH
(D)
O CHO HO



4
17. Which is the thermodynamically most stable allotrope (or polymorph) of carbon?
(A) Diamond (B) Hexagonal diamond
(C) Buckminsterfullerene or C60 (D) Graphite

18. The global maximum of the function, f x e x x ( ) .cos
2 − = , occurs at x =
(A) 3π (B) π (C) 2π (D) 0

19. The photosynthetic process in green plants consists of
(A) splitting of elements of water, followed by oxidation of oxygen to ozone.
(B) splitting of elements of water, followed by reduction of carbon dioxide.
(C) reaction of water with carbon dioxide.
(D) reaction of water with oxygen.

20. The sp hybridized carbocation among the following is
(A)

(B)
H

(C) (D)


Contact Detail:
Hyderabad Central University
Gachibowli, Hyderabad, Telangana 500046

Map:
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Attached Files
File Type: pdf Hyderabad University Chemistry Question Paper.pdf (188.9 KB, 44 views)


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