CENTRAL INSTITUTE OF PLASTICS ENGINEERING & TECHNOLOGY Question Bank
5 MARK ----QUESTION
COURSE :
DPMT
SEMESTER: II
SUBJECT :
Engineering Chemistry
1 MARK—QUESTION(MCQ)
--------
1. Modern Periodic table is based on ……………….
2. The idea of stationary orbits was first given
by
a)Rutherfordb)J.J.Thomsonc)Niels Bohr d) Max Plank
3. If A the number of nucleons and Z is the
number of neutrons and, then the number of protons in an atom is
givenby……………………
a) A+Z b)A-Z c)Z-A d)
none ofthese
4. What does ‘AM’ stands for?
5. Electronic configuration of N (7) is………………
6. The maximum
number of electrons that can be accommodated in an orbitis…………………..
a)2n b) n2c) 2n2d) 2n+1
7. The mass number and atomic number of sulphur atom are 32 and 16 respectively. Thenumber of neutrons in the nucleus is……………….
8. The particle
with neutral charge in the nucleus is………..
a)proton b)electron c) neutron d)nucleus
9. Bohr’s model
can successfully explain the structure of hydrogen containing……….electron.
a) 1 b) 2 c) 3 d) 4
10. What does “VBT” stands for?
11. MOT stands for……..?
12. d- Block
elements are also called ………. Metals.
a) alkali b) alkaline c)transition d)alkaline earth
13. f- Block
elements are also called ………. Metals.
a) alkali b) inner transition c)transition d)alkaline earth
14. …….have same atomic number but different mass number.
15. Accordingto……….itisimpossibletodeterminesimultaneouslythe position
and velocity with accuracy of a small particle like electron.
a)Heisenberg’suncertaintyprinciple b) Bohr’s atomic model
c) Pauli’s exclusion principle d)Aufbau Rule
16. Out of the
following pairs of elements which has the same number of electrons in the
outermostenergy level…………………….
a) heliumand lithium b) boronandcarbon c) carbon and nitrogen d) lithium andhydrogen
17. The maximum number of electrons that can be accommodated in d-subshellis………………
18. Isobars have same atomic number but different mass number (Say True orFalse)
19. The most electronegative element in the periodic tableis…………………..
20. ………………..is
an electronic configuration of chromium(Cr-atomic number24).
a)1s22s22p63s23p64s23d4
b)1s22s22p63s23p64s13d5
c)1s22s22p63s23p54s23d5
d)1s22s22p63s23p54s23d4
21. Which one of the following is the most polar
…......
a)H-F b)H-Cl c)H-Br d)H-I
22. Covalent or
non-polar bond is formed by …………..of electron.
a) Accepting b) donating c) mutual sharing d) none of these
23. In a N2 molecule there are one sigma and two pi bonds (Say True orFalse)
24.. .................... is formed by sidewise overlapping of atomicorbitals.
25. The high boiling point of alcohol is due to………………….
a)Covalent bonding b)Ionicbonding c)Hydrogenbonding d) Coordinatebonding
26. An ionic
bond is formed between.
a) Two metals atoms b) Two
non-metals atoms
c) One metal atom and one non-metal atom d) One metal atom and and one non-metalloid atom
27. In a
chemical bonding the atom attains …………configuration.
a) Partially filled b) half-filled c) vacant d) octet or inert gas
28. Bonding
between a metal ion and a ligand is known as …………bond.
a)Covalent bonding b)Ionicbonding c)Hydrogenbonding d) Coordinatebonding
29. ……… &
…………. are the two types of hydrogen bonding.
a)Inter and intramolecularb)Ionic and covalent c) ionic and coordinate d) None of the above
30. Hydrogen
bond is strongest in …………..
a) O-H…H b)F-H…F c)O-H…O d) O-H…F
31. According to Lowry-Bronsted concept, an acid is a
substancethat…………………..
a) acceptsa proton b) releasesaproton c) acceptsaelectron d) releases aelectron
32. Lewis base is a substance that accepts ………
33. Molecules or
ions that can behave both as Bronsted acid and base arecalled……………….
a)Monoprotic acids b)polyprotic acids c)amphiproticsubstances d) polyproticbases
34. Nitric acid is a strong acid because ithas………………………
a) highmolecularmass b)highlyunstable c)high ionization d) lowionization
35. A weak base has ………..conjugate acid and a weak acid has a ………..conjugate base.
36. Solution is a heterogeneous mixture of solute and solvent (Say True orFalse)
37. The ionic product of water is……………………
38. ………..of a solution is the number of equivalents of solute per liter of the solution.
39.. Molarity of a solution is the number of gram moles of solute per liter of thesolution.(Say True orFalse)
40. In a …………., the amount of solute is more in comparison to saturatedsolution.
a) Saturated solution b)unsaturated solution c)super saturated solution d) all of these
41. Solution of pH = 9 is ________.
a) Acidic b) Buffer c) Neutral d) None of these
42. For the preparation of 1000 ml of 0.1 N solution of sulphuric acid,
the amount of H2SO4 needed is……………
a)4.9 g b)9.8 g c) 14.7g d) 19.6 g
43. For the preparation of 1000 ml of 1 M solution of sodium carbonate,
the amount of Na2CO3 needed is……………
a)53 g b)106 g c) 10.6g d) 5.3 g
44. Polar compounds are soluble in ………..solvents.
45. Non-Polar compounds are soluble in non-polar solvents (Say True orFalse)
46. pH<7, is generally calledas…………………….
47. The taste of an acidis………………..
48.. Blue litmus Paper turns ………..colour, ifitis acidic solution.
49.. Red litmus paper turns blue colour, ifitis............. solution.
50. The Major quantity of the solution is called as solvent. (Say True orFalse)
51. Buffer solution is used to………………………
a) Increasethe pH
b) keep the pH remains same c)
decreasethe pH d) None of these
52. Buffer solution is a mixture of weak acid and its…………
53. Mixture of
NH4OH and NH4Cl solution is a…………buffer.
a) basic b) acidicc) neutral d) salt
54. pH + pOH =………
a) 7 b) 14 c) 10 d) 12
55. Sigma Bond is weaker than pi bond .(Say True orFalse)
56. ……….. Water
produces lather with soap solution.
a) Hard b) soft c) hot d) none of the above
57. Temporary
hardness of water can also be called as ………….
a) Carbonate b) non carbonate c) alkaline d) total
58. ……………of Ca andMgcreate temporaryhardness of
water.
a) Carbonates b)
Bicarbonates c) Carbonates and
Bicarbonatesd) None of these
59. Hard water can be used for washing purposes (Say True orFalse)
60. Temporary Hardness of water can be removed by ………. the water.
61. Full form of ppb…..?
62.. Magnesiumsulphate& chloridescreates........ hardness inwater.
a)Carbonate b) Total c) Temporary d) Permanent
63. ………….waterhasH+andOH-ions.
a)Deionizedb)ionized c) mineral d) impure
64. The degree of hardness of water is usually expressedas………………
65. pH stands for…………..
66. Full form of
ppm……..
67. Calgon, Na2[Na4(PO3)6]
is used as a………………………
a)water purifier b)water hardener c)watersoftener d) none ofthese
68.. Soap is the ………….. of higher fattyacid.
69. Use of hard
water in boilers causes……………
a)Boiler corrosion b) scales &sludges c) caustic embrittlement d) all the above
70. The general
formula of cationexchange resins is…………
a)RH+ b) ROH- c) RH2O d) All the above
71. Anion
exchange resinscan be regenerated using……….
a) DiluteNaOH b) HCl c) KMnO4 d) NH3
72. Permanent hardness can be removedby………………………
a) Limesoda process b)Permutit process c)Ion-exchangeprocess d) All of these
73. .Ground water contains appreciable amount of calcium and magnesium salts(Say True orFalse)
74. Full form of EDTA is……..
75. Full form of EBT is……..
76. Hardness of
water is due to the presence of salts of……….
a)Potassium b)chlorine c)Magnesium d)boron
77. The functional group of acidis……………….
a)RCOOH b)RCOOR c)RCHO d)RCOR
78. Ester has pleasant fruity smell. (say true or false)
79. Which one of following represents ketone
group.
(a) R-COOH (b) R-CO-R (c) R-OH (d) R-COOR’
80. Acid
derivatives are…….
(a) Ester (b) Amide (c) Anhydride (d) All of these
81. What does “TAN” stands for?
82. Catenation is the property of carbon atom - Saytrue or false.
83. What does “VC” stands for?
84. Alkyl groups has one hydrogen shortage of Alkane compounds (Say True orFalse)
85. Catenation property of carbon is responsible for the large number of
carbon compounds due to its.
a)small size b)tetrahedral structure c)moderate electronegativity d)All of these
86. All Organic compounds mainly consist of…………………..
87. Cyclic Compounds Contain one atom(Sulphur, Oxygen, Nitrogen) other than carbonis called………………………………
88. The general formula for alkaneis………………………….
a)CnH2n+2 b)CnH2n c)CnH2n-2 d)CnH2n+4
89. The first synthesized organic compound from an ammonium cyanate is…………..
90. The general formula for alkeneis………………………….
a)CnH2n+2 b)CnH2n c)CnH2n-2 d)CnH2n+4
91. The general formula for alkyneis………………………….
a)CnH2n+2 b)CnH2n c)CnH2n-2 d)CnH2n+4
92. Methane is a major constituent of …………..
93. 74. LPG ismixed with to detect leakage.
a)hydrogen b)oxygen c)mercaptans d)nitrogen
94. The antiknock property of the fuel depends
onits
a)Self-ignitiontemperature b)
Molecularstructure
c)Chemicalcomposition d) All of theabove
95. Decomposition
of higher hydrocarbon molecules into lower hydrocarbons having lower
boiling temperatures is known as Hydrogenation (say true or
false)
96. The heat energy released is measured with the help of …………
97.. Bomb calorimeter is used
to determine the calorific value of the…............ fuels
a)Solid fuels b) Liquid fuels c) both a& b d) None of the above|
98.. KJ/mol is the unit of………….
a)Calorific value b)Work c)Specific Heat d)Thermal conductivity
99. Coal is a …………..fuel, whereas coke is a
……….fuel.
100.Full form of LPG………
101.Full form of TEL………
102.Octane
number of isooctane is ……………
a) 50 b) 1 c) 100 d) 5
103.Knocking
…….. the efficiency of petrol engine.
a) increases b) decreases c) will not affect d) none of these
104.Diesel can be obtained by the fractional distillation of ………….
105.A
mixture of ……………..is known as water gas.
106.Coke
is a secondary solid fuel. (Say true or false)
107.The liquefied petroleum gas (LPG) marketed by Indian oil corporation is called………………..
108.A
petroleum fraction obtained between 180-2500Cis……………..
a) Petrol b) diesel c) Kerosene d) none of these
109.The fermentation process of cattle dung in the absence of air produces……….
110.The
combustion rate of solid fuels is slow because of the difficulty of thorough
contact betweenthe solid fuel and oxygen. (Say True or False)
111.Burning
of coal and dieselreleases………………….
a)NO2 b)CO2 c) SO2 d)CO
112.The antiknock property of gasoline can be increased by adding……….
113.Flow of electrons across the electrodes is known as …………
114.The conductance of a solution of an electrolyte generally increases with rise in temperature(Say True or False)
115.The units of specific conductanceare………………….
116.The
conductivity of an electrolyte is due tothe………………………..
a) presence of ions intheelectrolyte b)
free movement of ions in thesolution
c) reunion of ions inthesolution d) release of heat energy due toionization
117.On passing
electrical current through an electrolyte solution…………………
a) cations movetowardsanode b)
cations move towards cathode and anions towardsanode
c) anions movetowardscathode d) both cations and anions move in samedirection
118.The fraction of total current carried by the cation and anion is termedas……………….
119.The sum of
the transport number of cation and anion is equalto…………….
a)1 b)0 c)0.5 d)Infinity
120.The ionic mobility of Li+ is small as compared to that of K+. It is because Li+ ion is heavily hydrated (Say True orFalse)
121.One faraday is
equalto………………..
a)96.500coulombsb)9650coulombs c)965.00coulombs d)96500coulombs
121. Corrosion isa(an)............... process.
a)oxidation b)reduction c)electrolysis d)erosion.
122.………..metal is used as a coating on steel to limitcorrosion.
123.Corrosion startsat the …………. of
the metal.
a) surface b)middle c)bottom d)side
124.The
electrode where reduction occursiscalled……………
125.Positive
electrode is known as……….
a)Terminal b) Anode c) Cathode d) None of thes
126.Rust
is………………….
a) Hydratedcoppersulphate b)
Hydrated ferroussulphate
c) Hydratedferricoxide d) Hydrated ferrousoxide.
127.Among
lead, iron, chromium, and copper, the least easily oxidized metalis………….
128.Series connection of a number a number of cells is known as……………
129.Lead
acid battery is a……………..battery.
a)Primary b) secondary c) quaternary d) None of these
130.The
anode used in lead storage battery is……………
a)Pb b)PbO2on Pb c)only PbO2d)Zn
131.In
Daniel cell ……… are used as anode and
cathode respectively.
a)Zn &
Cu b) Cu & Zn c)Cu &Pb
d) Zn &Pb
132.In the electrolytic refining of metal,the pure metal is used as………..
133.In electrochemical cell electrical energy in converted in to chemical energy. (say true or false)
134.A beaker containing hot water, it is the example of ………..thermodynamic system.
135.The
process in which the volume of the system is remains constant is called as
……….
a) Isobaricb) Isochoricc) Adiabatic d) Isothermal
136.In
endothermic process heat is _________.
a) Evolved
b) absorbed c) increased d)
decrease
137.In
exothermic process heat is _________.
(a) Evolved (b) absorbed (c) increased (d) decreased
138.The
process in which the temperature of the system is remains constant is called
asIsochoric.
(Say true or false)
139.The study
of the flow of heat or any other form of energy into or out of a system
undergoing
physicalor chemical change iscalled………………….
140.Thermodynamics is applicable to macroscopic systems only (Say True orFalse)
141.In an
exothermic reaction the heat energy is……………..while in endothermic reaction
itis…………
a)released,released b)
released, absorbed
c)absorbed,released d)
absorbed,absorbed
142.The
mathematical relation for the first law of thermodynamicsis……………
a)ΔE=q-w b) ΔE=0 for
acyclicprocess
c) ΔE=q for anisochoricprocess d) all ofthese.
143.In an adiabatic process no heat can flow into or out of the system (Say True orFalse)
144.A thermoflask is an example of…………………
145.For an idealgas……………
146.A
process which proceeds of its own accord, without any outside assistance
iscalled…………..
a) Non-spontaneousprocess b)
spontaneousprocess
c) Reversibleprocess d) irreversibleprocess
147.Entropy
is ameasureof of the molecules of
thesystem.
a)Concentration b)Velocity c)zig-zagmotion d) randomness ordisorder
148.A
machine that can do work by using heat which flows out spontaneously from a
high-temperature source to a low temperature sink iscalled…………………
a) Carnot machine
b) Cyclicmachine c)
Heatmachine d) Heat engine
149.Mixing of
two or more gases is a spontaneous process (Say True orFalse)
150.∆G is stands for……
151.∆H is stands for…
152.∆S is stands for……
153.The
mathematical reaction for the first law of thermodynamics is…..
a) ∆E=q-W b) ∆E=0 for a cyclic process
c) ∆E=q for an isochoric process d) all of these
154.A
closed system is one which cannot transfer matter but transfer…………….to and from
its surrounding.
a)Heat b)work c)radiation d)all of thes
155.Enthalpy
is an example for………….. property.
a) Isothermal b) adiabatic c) intensive d) extensive
156.An
intensive property does not depend upon the………
a)Nature of the
substance b) quantity of matter
c) External temperature d) atmospheric pressure
157.Precipitation
of silver chloride from silver nitrate & sodium chloride is an example
for………reaction
a)reversible b) irreversible c) neutral d) none of the above
158.For
an endothermic reaction………
a) (∆S > 0) & (+∆H) b) (∆S < 0) & (+∆H) c)(∆S< 0)&(-∆H) d) (∆S > 0)&(-∆H)
159.When…………….,
heat is transferred into the system.
a) q>0 b) q<0 c) q=0 d) all the above
160.w<0
shows that, work is done ……the system.
a) on b) by c) through d) all the above
161………….is
not an intensive property.
a)Volume b)Pressure
c)Density d)Concentration
162.∆E is stands for……
163.The
entropy of the system increases in the order…………………….
a) gas< liquid<solid
b) solid < liquid<gas c)
gas < solid<liquid d) none
ofthese
164.............. ……
is the unit for entropy.
a)KJ mol-1 b)JK-1mol c)JK-1mol-1 d) KJmol
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