Sunday, November 29, 2015
S.B. Roll No……….
APPLIED
CHEMISTRY-I
1st Exam/Common/0451/5404/Dec’11
Duration : 2½ Hrs M.
Marks: 75
1.
Which of the
following is not one of the seven fundamental unites?
a) Kilogram b)
Candela
c) Mole d) Watt
2.
1 calorie = ……………………….joules
a) 4.2 b) 4.8
c) 4.6 d) 4.9
3.
Freezing point
of water at 1 atm Pressure of Kevin scale is
a) 0.K b) 1K
c) -273 K d) + 273 K
4.
Which of the
following is not an element?
a) Diamond b) Graphite
c) Ozone d) Sand
5.
Which of the
following is a metalloid?
a) Antimony
b) aluminium
c) copper
d) silver
6.
Which has the
maximum viscosity?
a) Water b) glycol
c) acetone d) ethanol
7.
The charge on a
cation M is + 2 and on anion A is -3. The compound formed has the formula
a) MA2 b) M2 A3
c) M3 A2 d) M2 A
8.
NaCl is a chemical formula of:
a) washing soda b) baking soda
c) sugar d) common salt
9.
Which is the
following has the largest number of atoms?
a) 0.5 g atom of C. b) .5 g of C
c) 0.25 mole of C d) 1 g of C
10.
Mass of 0.40
moles of CO2 is
a) 40g b) 44g
c) 17.6g d) 12.6g
11.
1 a.m.u. is mass
of:
a) 1 atom of C b) 12 atoms of C
c) 1/12th c) 6.022x1023
12.
Mass of 0.1 mole
of CaCO3 is
a) 1 g atom of C b) 12 atoms of C
c) 1/12 th of atom c) 6.022x10 23 atoms of C
13.
Neutrons are
present in all atoms except
a) He b) C
c) H d
) Ne
14. The designation of an orbital with n=4 and I=3
is
a) 4s
b) 2p
c) 4d
c) 4f
15. The
lightest particle among the
following is
a) proton b) neutron
c) electron d) atom
of hydrogen
16. A pier
bond is formed by the overlapping of
a) S-s orbital b) s-p orbital
c) p-p d) d-d orbital
17. Series
of lines presents in visible region
of Hydrogen spectrum is
a) Lyman
b) Balmer
c) paschen d) brackett
18. As we
move away from
nucleus, the energy of shell
a) Decreases b) increases
c) remains d) neither decreases nor
19. Which
of the following noble gases has lowest
atomic number
a) Ne b) He
c) Kr d) Xe
20. The
shape of 2s orbital is
a) Dumbbell b) Tetrahedral
c) pyramidal d) spherical
21. If the mass of an atom is 90 and number of neutrons is 50 its atomic number is
a) 40 b) 50
c) 90 d)
140
22. The
quantum number representing shapes
of the electron cloud is
a) n b) l
c) m d) s
23. The
size of the nucleus of an atom is of the order of
a) 10-8 b) 10-13
c) 10-4 d)
10-6
24. The charge on the electron was found by
a) j.j.Thomsan b) miliken
c) Faraday. d) goldstein
25. The
number of elements present in the 3rd pried is
a) 6 b) 18
c) 32 d) 8
26.
Every period in the periodic table ends with
a) An
alkali b) a halogen
c) an inert gas d) a transition element
27. the
element with atomic number 26 will found in the group
a) 4 b) 6
c) 8 d) 10
28. The
total number of actinides in the period table are
a) 12 b) 13
c) 14 d) 15
29. The
elements of group 16 in periodic table are known as
a) Alkali
metals b) alkaline
earth
c) chalcogens d) halogens
30.
Halogens belongs to
a) p-
block b) s- block
c) d- block d) f- block
31. In the
periodic table, the position of the elements still uncertain is of
a) He b) H
c) Li d) C
32. The
purest form of water obtained from the element sources is :
a) Spring
water b) rainwater
c) Sea water d) lake water
33.
Temporary hardness of water is due to presence of calcium and magnesium
a) Chlorides b) Sulphates
c) Bicarbonates d) Nitrates
34. The process of destroying the disease
producing bacteria or micro-organisms
from water is known as
a) aeration
b) sedimentation
c) coagulation d) disinfection
35.
Permanent hardness is due to the presence of Ca and Mg as
a) carbonate
only b) bicarbonates only
c) chloride only d) chlorides and sulphates
36.
Permanent hardness can be removed by adding
a) CI2 b) Na2CO3
c) Bleaching
powder d) KMnO4
37. The
element name of permutit is:
a) Potassium
zeolite b) sodium zeolite
c) calcium zeolite d) magnesium zeolite
38.
Hardness can be estimated
a) Clark’s
method b) soap titration method
c) EDTA method d) both b and c
39. On
boiling water becomes free from
a) Permanent
hardness b) temporary
hardness
c) suspended impurities d) floating impurities
40.
Exhausted permutit is regenerated by washing it with
a) NaCI
b) NaOH
c) HCl d) KOH
41. The
temporary hardness of water due to calcium bicarbonates can be removed by:
a) Bleaching
powder b) Sodium
carbonate
c) Chlorine d) Potassium
carbonate
42. In hot
soda lime process, temporary hardness of water can be removed by
a) Lime b) Magnesium
hydroxide
c) Fine sand layer d) Coarse sand layer
43. The
process of removing extra common salt from water is called:
a) De-ionization b) Desalination
c) Disinfection d) Softening
44.
Coagulants help in setting of:
a) Colloidal
particles only b) Fine
Suspended impurities
c) Suspended impurities only d) Both a and c
45. A law
which governs the effect of conc. On the rate of reaction is called
a) Dalton
law b) Le-chatelier’s principle
c) Law of chem. equilibriul d) Law
of mass action
46. Theory
of ionization was given by:
a) Bohr
b) Arrhenius
c) Rutherford d) Newton
47. The conjugate
acid of NH2- is
a) NH3 b) NH2OH
c) NH4 d) N2H4
48. Ionic
product of water changes when
a) An
acid is added to water
b) A base is added to water
c) both acid and base are added to water
d) temp. is changed
49. A buffer mixture of ammonium chloride and
ammonium hydroxide is diluted with water, its pH will
a) Increases b) remains the same
c) decreases d) becomes 7
50.
Buffer action of a buffer is due to:
a) Association
b) common ion effect
c) dissociation d) heat
production
51. The
indicator used in titration of strong acid and strong base is
a) litmus
b) methyl
orange
c) phenolphathalein d) methyl
red
52. HCL is
stronger acid than acetic acid because
a) It
can neutralize large quantity of alkali.
b) it can corrode anything it comes in
contact
c) it ionizes completely to ions in aqueous
soln.
d) none of these
53. Hydrolysis
of sodium acetate will give:
a) Basic
soln. b) acidic soln.
c) neutral soln. d) normal
soln.
54. Anaqueous
soln. whose pH is O is:
a) Alkaline b) acidic
c) neutral d) amphoteric
55. Strong
electrolytes are those which:
a) Dissolve
readily in water b) conduct
electricity
c) dissociate into ions at high dilution d) can
not dissociate into ions
56. The
unit of electrochemical equivalent is:
a) Gram b) gram/ampere
c) gram/coulombs d) coulombs/gram
57. One
Faraday is equal to
a) 9650
coulombs b) 9650 coulombs
c) 39650
coulombs d) 39650 coulombs
58. On
electrolysis is of dil, H2SO4 soln. between platinum
electrodes, this gas evolved at the anode is
a)O2 b)SO2
c)H2 d)SO2
59. Which
of the following battery is rechargeable?
a) Dry
cell b) mercury
cell
c) Ni-Cd cell d) H2-O2 cell
60. In
electrolytic refining metal to be purified is made as:
a) Anode
b) cathode
c) neutral d) none
61. Reducing
agent is a substance which can
a) Accept
electrons b) accept protons
c) donate electrons d) donate protons
62. E.C.E
is more for
a) Hydrogen b) copper
c) zinc d) silver
63. During
electrolysis, all ions
a) Move
in the same direction
b) move
towards oppositely charged electrode
c)remains
stationary
d) none of
these
64. Electric
current is the flow of
a) Ions b) atoms
c) electrons d) none of these
65. When
aqueous sodium chloride is a electro lysed, the product obtained at the cathode
is
a) Hydrogen
b) chlorine
c) sodium metal d) redox reaction
66. The
reactions in which oxidation and reduction go side by side are called
a) Oxidation reaction b) reduction reaction
c) redox reaction d) exothermic
reaction
67. In the
electroplating of metals, anode is made up of
a) Pure
metal b) impure metal
c) both a and b d) electrolyte
68.
Tetravalency of carbon can be explained by
a) Resonance b)
hybridization
c) inductive effect d)none
of these
69. Graphic
is used as electrodes because ‘it has the property of:
a) Good
conduction of electricity
b) Bad
conduction of electricity
c) Metallic lustre
d) none of
these
70.
The property of self linking of carbon atoms is known as
a) Catenation
b) polymerization
c) carbonization d) none of these
71. The
common name of H2CCOOH
is:
a) Formic
acid b) acetic
acid
c) carbonic acid d) none of these
72. Hydrocarbons
containing triple bonds are known as:
a) Alkanes b) alkenes
c) alkyness d) none
of these
73. Cyanides are also known as
a) Alkane
nitriles b) imines
c) amines d) amides
74. The
organic compound present in vinegar is:
a) Ethanoic
acid b)
propanoic acid
c) methanoic acid d) butanoic
acid
75. The
aromatic smell of flowers is due to the presence of:
a) Alcohols b) acids
c) esters d) amines
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