Shivaji University Entrance Exam 2020 Question Paper B.Sc Nano Science

Seat Paper Code(ENT202029)
No.
B.Sc.Nano Science , MAY-2020

71145-Nanoscience and Technology(B.Sc.-M.Sc.)

Day And Date : Tuesday 10/11/2020 Total Marks : 100
Time : 11:00 To 12:30
Marks
1 A body of mass M hits normally a rigid wall with velocity V and bounces back with 1
the same velocity. The impulse experienced by the body is
A) Zero
B) MV
C) 1.5 MV
D) 2 MV
2 Which of the following carbonyl compounds undergoes aldol condensation? 1
A) Benzaldehyde
B) Benzophenone
C) Acetophenone
D) tert-Butyl phenyl ketone
3 Which of the following is the correct name for NaHCO3 1
A) sodium hydrogen carbonate
B) sodium acetate
C) nitrogen hydrogen carbonate
D) sodium hydrogen carbon trioxide
4 Homogenous mixture is formed by mixing 1
A) phenol and water
B) iron filing and sand
C) silver chloride and water
D) ethanol and water
5 The intermolecular force of attraction between methane molecule is 1
A) dipole-dipole interaction
B) ion-dipole interaction
C) dipole-induced dipole interaction
D) dispersion forces
6 1

7 Which of following electron have highest energy? 1
A) 2s
B) 2p
C) 1s
D) 4p.

8 For an electron if m=0,electron is present in , 1
A) s orbital
B) p orbital
C) d orbital
D) f orbital
9 The energy of electron in the same subshell is --- 1
A) different
B) zero
C) infinite
D) same.
10 In the Modern periodic table the element are arranged in 1
A) increasing mass
B) increasing atomic volume
C) increasing atomic number
D) alphabetically
11 The lanthanoides are placed in the periodic table at 1
A) left hand side
B) right hand side
C) middle
D) bottom .
12 Total number sigma bonds involved in ethylene molecule are 1
A) 3
B) 5
C) 2
D) 1
13 When cations and anions from ionic solid a leaves its regular site and moves to 1
occupy a place between the lattice site called interstitial position, the defect is
called ……………..
A) Vacancy defect
B) frenkel defect
C) Schottky defect
D) Impurity defect
14 1

15 Lateral overlap of p-orbital’s leads to the formation of 1
A) Π-bond
B) Metallic bond
C) σ-bond
D) Ionic bond.

16 A convex lens of focal length 30 cm produces 5 times magnified real image of an 1
object. What is the object distance?
A) 36 cm
B) 25 cm
C) 30 cm
D) 150 cm
17 1

18 For a series LCR circuit at resonance, the statement which is not true is 1
A) Peak energy stored by a capacitor = peak energy stored by an inductor
B) Average power = apparent power
C) Wattless current is zero
D) Power factor is zero
19 1

20 In an unbiased p-n junction 1
A) Potential at p is more than that at n
B) Potential at p is less than that at n
C) Potential at p is equal to that at n
D) Potential at p is +ve and that at n is -ve
21 1

22 A horizontal metal wire is carrying an electric current from the north to the south. 1
Using a uniform magnetic field, it is to be prevented from falling under gravity. The
direction of this magnetic field should be towards the______.
A) east
B) west
C) north
D) south
23 A capacitor and an inductance coil are connected in separate AC circuits with a 1
bulb glowing in both the circuits. The bulb glows more brightly when ______.
A) separation between the plates of the capacitor is increased.
B) a dielectric is introduced into the gap between the plates of the capacitor.
C) an iron rod is introduced into the inductance coil.
D) the number of turns in the inductance coil is increased.
24 1

25 1

26 1

27 Vapour pressure of solution of a non volatile solute is………………. 1
A) Higher than vapour pressure of pure solvent
B) Equal to the vapour pressure of pure solvent
C) Lower than vapour pressure of pure solvent
D) Constant
28 The two solutions with same osmotic pressure are called…………………. 1
A) Hypertonic
B) Hypotonic
C) Isotonic
D) Isometric
29 The system that can exchange both energy as well as matter with its surroundings 1
is called……….
A) Closed system
B) Open system
C) Isolated system
D) All of the above
30 In DNA two adjacent nucleotides are joined together 1
by……………………………..Bond
A) Peptide
B) Phosphodiester
C) disulphide
D) amide
31 Which of the following is milk sugar 1
A) Glucose
B) Maltose
C) Lactose
D) All of the above
32 ___________________ of the following is water soluble vitamin 1
A) Vitamin A
B) Vitamin D
C) Vitamin K
D) Vitamin B
33 Sucrose is ……………………………………………. 1
A) Monosaccharide
B) Disaccharide
C) Polysaccharide
D) All of the above
34 Which structure does NOT play a part in the motion of cells? 1
A) microvilli
B) cilia
C) flagella
D) pseudopodia

35 1

36 Molecules that are mirror images of one other are called as ____________ 1
A) Isomers
B) Epimers
C) Anomers
D) All of the above
37 Which of the following is NOT a mode of genetic exchange within a bacterial 1
population?
A) Conjugation
B) Transduction
C) Transformation
D) Translation
38 Tissue differentiation begins at which stage? 1
A) Zygote
B) Morula
C) Blatula
D) Gastrula
39 The nervous system develops from which germ layer? 1
A) ectoderm
B) mesoderm
C) endoderm
D) none
40 During inspiration, the diaphragm moves: 1
A) down by contraction
B) down by relaxation
C) up by contraction
D) up by relaxation
41 Which of the following is NOT a function of the kidney 1
A) excretion of urea
B) regulation of fluids and electrolytes
C) elimination of toxic substancess
D) defecation
42 Which of the following is synthesized from carotene? 1
A) Vitamin B
B) Vitamin A
C) Vitamin C
D) Vitamin D

43 Sucrose is disaccharide formed from the _________________ 1
A) Glucose & Fructose
B) Maltose
C) Galactose & Xylose
D) Arabinose &Ribulose
44 Of the following, which is a basic need of all living things? 1
A) oxygen gas
B) light
C) hydrogen gas
D) water
45 1

46 1

47 1

48 1

49 1

50 1

51 The condition for the minimum of interference of light due to reflection at the 1
surface of parallel faced glass plate is
A) 2μ t cos r = nλ
B) 2μ t cos r = (n + 1/( 2)) λ
C) 2μ t cos r = n λ/2
D) 2μ t cos r = (n + 1/2) λ/2
52 1

53 1

54 Each unit cell of Face centred cubic type crystal contains …………….. 1
A) 1
B) 2
C) 3
D) 4

55 1

56 1

57 The number of asymmetric carbon atoms in glucose are…… 1
A) 2
B) 3
C) 4
D) 5
58 1

59 The glands which has duct are called as …………………………. 1
A) Exocrine gland
B) Endocrine glands
C) both a & b
D) none of the above

60 ……………………………… sugar is called as table sugar 1
A) a)Sucrose
B) b)Lactose
C) c)Glucose
D) d)Maltose
61 Theory of use and disuse was proposed by _______________ 1
A) Darwin
B) Lamarck
C) Both a & b
D) None of the above
62 The valve between the right ventricle and the pulmonary artery is the 1
A) mitral valve
B) semilunar valve
C) bicuspid valve
D) tricuspid valve
63 1

64 Racemate is……… 1
A) Optically active
B) Optically dextro rotator
C) Optically inactive
D) Optically laevorotatory
65 The geometry of carbonium ion is ...... 1
A) Tetrahedral
B) Planar
C) Linear
D) Pyramidal
66 The number of sp2 and sp3 hybridized carbon atoms in fructose are 1
respectively…..
A) 4 and 2
B) 2 and 4
C) 1 and 5
D) 5 and 1

67 n-Propylamine can be prepared by catalytic reduction of…………. 1
A) n-propyl cyanide
B) propionaldoxime
C) acetoxime
D) nitroethane
68 28.α-halogentaion used as synthetic lemonade is………. 1
A) Gattermann reaction
B) Riemer – Tiemer reaction
C) Sandmeyer’s reaction
D) HVZ reaction
69 It is difficult to break C-CI Bond in CH2 = CH-CI due to……….. 1
A) Hyper conjugation
B) Resonance
C) Electromeric effect
D) Inductive effect
70 The smell of bitter almond is given by the compound……….. 1
A) Benzoic acid
B) Benzaldehyde
C) vanillin
D) cinnamaldehyde
71 The number of electrons surrounding the carbonium ion is………….. 1
A) 6
B) 8
C) 10
D) 7
72 The total number of electrons present in the central carbon atom of a free radical 1
is…….
A) 7
B) 8
C) 9
D) 6
73 Acetoxime on catalytic reduction gives……… 1
A) Acetic acid
B) acetic anhydride
C) ethylamine
D) isopropylamine
74 Schiff’s reagent gives pink colour with…… 1
A) acetone
B) acetic acid
C) acetaldehyde
D) methylacetate
75 A botanist is most likely to study 1
A) Monerans
B) Protistans
C) Fungi
D) Virions

76 A virus must do what to reproduce? 1
A) form a latent virus
B) undergo transformation
C) infect a cell
D) conjugate
77 Process of meiosis occurs in ____________________ 1
A) Gametic cells
B) Somatic cells
C) Both a & b
D) None of the above
78 When CO2 (carbon dioxide) is dissolved in water, it yields a solution that 1
A) has acidic properties
B) has basic properties
C) is neutral
D) none
79 Food preservative in tomato ketchup is…… 1
A) Sodium acetate
B) sodium benzoate
C) sodium salicylate
D) sodium propionate
80 Mendel used _______________ plant for performing the his genetics experiment 1
A) Pea
B) banana
C) potato
D) rose
81 Once the erythrocytes enter the blood in humans, it is estimated that they have an 1
average lifetime of how many days
A) 10
B) 120
C) 200
D) 360
82 Starch is homo polysaccharide formed by joining of many ___________units 1
together.
A) Mannose
B) Arabinose
C) Glucose
D) Ribose
83 Which of the following is cane sugar 1
A) Glucose
B) Maltose
C) Lactose
D) Sucrose
84 Pyramid of energy is always ________________ 1
A) Inverted
B) Upright
C) Average
D) None of the above

85 1

86 Phenol molecule contains how many hydroxyl groups? 1
A) Three
B) Four
C) One
D) Many
87 An ester can be prepared by reacting 1
A) Carboxylic acid and alcohol
B) Amine and ketone
C) Ketone and alkyne
D) Alcohol and phenol
88 Natural rubber contains 1
A) Polyisoprene
B) Polyethylene
C) Polypropylene
D) Polystyrene
89 Lactose is ……………………………………………. 1
A) a)Monosaccharide
B) b)Disaccharide
C) c)Polysaccharide
D) d)All of the above
90 Codeine is……. 1
A) Tranquilizer
B) Antibiotic
C) Analgesic
D) Antacid
91 1

92 Which of the following represents the correct formula for aluminum oxide? 1
A) AlO
B) Al2O3
C) AlO2
D) Al2O
93 Actinoides belong to following type of elements 1
A) s-block elements
B) d-block elements
C) f-block elements
D) p-block elements .
94 The weakest bond among the following is 1
A) Ionic bond
B) Metallic bond
C) Covalent bond
D) Hydrogen bond
95 1

96 How many milligrams are in 0.2 decigrams? 1
A) 20
B) 2000
C) 0.002
D) 0.00002
97 1

98 When a chemical bond between two atom is formed, the potential energy of 1
system
A) decreases
B) increases
C) remains the same
D) cannot be predicted
99 …………………………… blood group is universal acceptor 1
A) a)A
B) b)AB
C) c)O
D) d)All of the above

100 1