CHEMICAL KINETICS MCQs

1. Nano-science can be studied with the help of _____.

(A) geophysics

(B) Newtonian mechanics

(C) macro-dynamics

(D) quantum mechanics

2. What is a Bucky ball?

(A) Plastic explosives nanoparticle (C4)

(B) Nickname for Mercedes-Benz’s futuristic concept car (C111)

(C) A carbon molecule (C60)

(D) Concrete nanoparticle with a compressive strength of 20 nanonewtons (C20)

3. The nano tube may __________ without friction.

(A) Overlaps

(B) Under laps

(C) Slides

(D) Collides

4. Which of these historical works of art contain?

(A) Lycurgus cup

(B) Medieval stained glass windows in churches

(C) All of A, B, and C

(D) Damascus steel swords

5. How many oxygen atoms lined up in a row would fit in a one nanometer space?

(A) Seven

(B) One

(C) an oxygen atom is bigger than 1 nm

(D) Seventy

6. Optical tweezers –

(A) Are helpful and used to remove facial hair with miniaturized laser beams

(B) Don’t exist.

(C) Are a nanotechnology-based tool for stamp collectors

(D) Use light to manipulate particles as small as a single atom

7. What is graphene?

(A) A software tool to measure and graphically represents nanoparticles

(B) A new material made from carbon nanotubes

(C) Thin film made from fullerenes

(D) A one-atom thick sheet of carbon

8. 1 nanometer = __________ cm.

(A) 10^-6

(B) 10^-8

(C) 10^-9

(D) 10^-7

9. “There is a plenty of room at the bottom.” This was stated by

(A) Richard Feynman

(B) Albert Einstein

(C) Issac Newton

(D) Eric Drexler

10. What exactly is a quantum dot?

(A) Unexplained spots that appear in electron microscopy images of nanostructures smaller than 1 nanometer

(B) A semiconductor nanostructure that confines the motion of conduction band electrons, valence band holes, or excitations in all three spatial directions

(C) A fictional term helpful and used in science fiction for the endpoints of wormholes

(D) The sharpest possible tip of an Atomic Force Microscope

11. The prefix ‘nano’ comes from a __________.

(A) Latin word meaning invisible

(B) French word meaning billion

(C) Spanish word meaning particle

(D) Greek word meaning dwarf

12. The diameter of human hair is near about ______m

(A) 75000

(B) 75

(C) 7.5 x 10^-5

(D) 7.5 x 10^-9

13. What is the correct size of E.coli bacteria?

(A) 75000

(B) 5

(C) 2000

(D) 200

14. The diameter of a Bucky ball is near about _____.

(A) 10 nm

(B) 100 A°

(C) 1 A°

(D) 1 nm

15. The hardest material found in nature is _______.

(A) topaz

(B) diamond

(C) steel

(D) quartz

16. 1 meter = _______ nm.

(A) 10^-9

(B) 10^-10

(C) 10^10

(D) 10^9

17. The diameter of hydrogen atom is _________ nm.

(A) 10

(B) 0.01

(C) 0.1

(D) 1

18. The correct size of a quantum dot is –

(A) 5 x 10^-9

(B) 5 x 10^-11

(C) 5

(D) 5 x 10^-10

19. __________ are the extensions of Bucky balls.

(A) Carbon nanotubes

(B) Hexagons

(C) AFM and STM

(D) Geodesic domes

20. What is Nanotechnology?

(A) Carbon engineering

(B) Atomic engineering

(C) Small technology

(D) Microphysics

21. The diameter of fly ash particles is _______________.

(A) 20-30

(B) 10-20

(C) 100

(D) 5-10

22. The tensile strength of a carbon nanotube is __________ times that of steel.

(A) 1000

(B) 100

(C) 25

(D) 10

23. In a Bucky ball, each carbon atom is bound to adjacent carbon atoms.

(A) 4

(B) 2

(C) 1

(D) 3

24. The correct size of nanoparticles is between __________ nm.

(A) 1 to 100

(B) 0.1 to 10

(C) 100 to 1000

(D) 0.01 to 1

25. Fullerene or Bucky ball is made up of _______ carbon atoms.

(A) 60

(B) 20

(C) 75

(D) 100

26. The ratio of thermal conductivity of silver to that of a carbon nanotube is-

(A) 1:100

(B) 1:10

(C) 10:1

(D) 100:1

27. Which of the microscopic techniques is similar to the Atomic Force Microscopy (AFM)

(A) Scanning Electron Microscopy

(B) Scanning Tunneling Microscopy

(C) Transmission Electron Microscopy

(D) None of A, B, and C

28. Who was the first scientist to explain that substances having nanodimensions possess altogether different and unique properties?

(A) Michael Faraday

(B) Eric Drexler

(C) Archimedes

(D) Richard Feynmann

29. Who coined the word ‘nanotechnology’?

(A) Richard Smalley

(B) Richard Feynmann

(C) Sumio Tijima

(D) Eric Drexler

30. Greeks and Romans had used nanoparticles in the manufacture of _______.

(A) Cosmetics for eyes

(B) medicines

(C) metal articles

(D) hair-dye

31. 20 micron = __________ nm.

(A) 20000

(B) 20 x 10^9

(C) 200

(D) 20 x 10^-9

32. Which does not apply to nanotechnology?

(A) Newtonian mechanics can describe it.

(B) It can be called Green technology.

(C) It involves rearrangement of atoms.

(D) It is a general-purpose technology.

33. The width of a typical DNA molecule is ___________nm.

(A) 1

(B) 2

(C) 5

(D) 10

34. The full form of STM is __________.

(A) Scanning Tunneling Microscope

(B) Scientific Technical Microscope

(C) Systematic Technical Microscope

(D) Super Tensile Microscope

35. Who had invented the famous Geodesic dome structure?

(A) Eric Drexler

(B) Faraday

(C) Buckminster Fuller

(D) Richard Smalley

36. Which ratio decides the efficiency of nano substances?

(A) Surface area/volume

(B) Pressure/volume

(C) Volume/weight

(D) Weight/volume

37. Which is/are class/classes of nanorods?

(A) Metals

(B) Alloys

(C) All of A, B, and C

(D) Metal oxide and Metal sulphite

38. The compressive strength of a nanotube ____________ its tensile strength.

(A) may be greater than

(B) is greater than

(C) is equal to

(D) is less than

39. The bulk modulus of a standard SWNT is _______ that of diamond.

(A) less than

(B) greater than

(C) equal to

(D) less than or equal to

40. The thermal conductivity of an SWNT along length is ______ watt/(m K).

(A) 385

(B) 350

(C) 3500

(D) 35

41. The electrical conductivity of a nanotube is times that of copper.

(A) 100

(B) 1000

(C) 200

(D) 10

42. In radial direction, the thermal conductivity of a nanotube is ______ watt/(m.K).

(A) 0

(B) 385

(C) 3500

(D) 350

43. The capacity of a normal human eye to see the smallest object is _________ ʯm.

(A) 100

(B) 200

(C) 10

(D) 10000

44. What does ‘F’ stand for in AFM?

(A) Force

(B) Front

(C) Fine

(D) Flux

45. The width of a carbon nanotube is nm.

(A) 1.3

(B) 10

(C) 2.5

(D) 1

46. The smallest cluster of carbon atoms in Bucky balls known till today consists of _______ carbon atoms.

(A) 40

(B) 20

(C) 75

(D) 15

47. Who prepared and explained nanotubes for the first time?

(A) Richard Feynmann

(B) Richard Smalley

(C) Sumio Tijima

(D) Eric Drexler

48. The suffix ‘-ene’ in the name of fullerene shows the presence of _____ in the molecule.

(A) one double bond

(B) one triple bond

(C) two single bonds

(D) two triple bonds

49. Which technique is bulk technique?

(A) Powder XRD

(B) Single Crystal XRD

(C) SEM

(D) TEM

50. Nanoparticle production includes procedures like

(A) Formation of metal nuclei on different sizes

(B) Both a and b

(C) Interaction among the formed particles

(D) No interaction among the nano particles synthesized

51. Fullerenes are stable with ______ hybridization.

(A) sp2

(B) sp4

(C) sp3

(D) sp

52. _______ is exhibited by fullerenes.

(A) De-halogenation

(B) Dual nature

(C) Dehydrogenation

(D) Sp hybridization

53. The same composition produced when the C60 is ozonated is at ______.

(A) 296K

(B) 257K

(C) 300K

(D) 250K

54. Graphite has what kind of layered structure?

(A) Three dimensional structure

(B) Pyramidal

(C) Planar

(D) Bipyramidal

55. The distance between the planes of the graphite is

(A) 0.124nm

(B) 0.223nm

(C) 0.335nm

(D) 0.876nm

56. The graphite is _______ anisotropic.

(A) Very less

(B) Lightly

(C) Not

(D) Highly

57. In oxygen containing atmospheres, the graphite readily converts into

(A) Carbonmonosulphide

(B) Carbon monoxide

(C) Carbon dioxide

(D) Carbondisulphide

58. The graphite is

(A) Paramagnetic

(B) Ferrimagnetic

(C) Diamagnetic

(D) Ferromagnetic

59. Natural graphite is mostly helpful and used in __________.

(A) Fuel

(B) Laboratories

(C) Refrigerators

(D) Catalyst

60. Carbon nano tubes are the sheets of graphite about

(A) 0.4nm

(B) 0.2nm

(C) 0.3nm

(D) 0.1nm

61. Chemical vapor decomposition was developed in the year _________.

(A) 2001

(B) 2002

(C) 2010

(D) 2007

62. CNTs are the strongest and stiffest materials in ____________.

(A) Tensile strength

(B) Ductility

(C) Elasticity

(D) Energy

63. Multi walled CNT are ___________ concentric nano tubos.

(A) Double

(B) Multiple

(C) Triple

(D) Single

64. One of the advantages of sol-gel method is able to get uniform and _________ powder.

(A) Micro size

(B) Small size

(C) Nano size

(D) Large size

65. The optical properties of CNT are due to _______ of photoluminiscene.

(A) Absorption

(B) Emission

(C) Consumption

(D) Collision

66. The microwave absorptions are helpful and used for _____.

(A) Electric irons

(B) Military radars

(C) Radars

(D) Satellites

67. A solid that offers no _________ passage of electricity is called super conductors.

(A) Inductance

(B) Resistance

(C) Conductance

(D) Impedance

68. Sol-gel method is ________ approach.

(A) Down top

(B) Up bottom

(C) Top down

(D) Bottom up

69. Sol-gel method is _________ chemical process.

(A) Wet

(B) Semi solid

(C) Semi liquid

(D) Dry

70. The solvent evolves towards the formation of an inorganic continuous network containing a _____

(A) Gaseous phase

(B) Semi solid phase

(C) Gel

(D) Solid phase

71. Formation of an inorganic continuous network containing the metal centers with

(A) Hydro

(B) Nitro

(C) Oxo

(D) Oxo

72. For nano meters whose diameters less than ______ are helpful and used as welding purposes.

(A) 30mm

(B) 20mm

(C) 10nm

(D) 40nm

73. After drying process the liquid phase is removed from the gel and ____ is performed.

(A) Hydrogenation

(B) De-oxygenation

(C) Calcination

(D) Oxygenation

74. Sol-gel method can produce ______ systems.

(A) Uniform multi component

(B) Non uniform multi component

(C) Multi component

(D) Non uniform multi component

75. The diameter of the nano wire is near about ______.

(A) 10-4m

(B) 10-9m

(C) 10-8m

(D) 10-6m

76. A suspended nano wire is a wire that is produced in the

(A) Air medium

(B) Vacuum

(C) High vacuum chamber

(D) Low vacuum chamber

77. Nano wires are helpful and used in which of the following?

(A) Transducers

(B) Resistors

(C) Transistors

(D) Capacitors

78. Nano cones are the predominant structures made with which of the following?

(A) Silicon

(B) Nitrogen

(C) Hydrogen

(D) Carbon

79. Industrial catalysts should have ____ surface area.

(A) Moderate

(B) High

(C) Low

(D) No

80. The preferred opening angles of the nano cones are ________.

(A) 20, 30, 40

(B) 20, 40, 50

(C) 20, 40, 80

(D) 20, 40, 60

81. The nano particles from iron and palladium are helpful and used to produce _________.

(A) Magnetic lens

(B) Magnetic storage devices

(C) Magneto meters

(D) Magnets

82. Nano particles target the rare __________ causing cells and remove them from blood.

(A) Tumor

(B) Fever

(C) Infection

(D) Cold

83. Fabrics are extensively made out of nano materials like ___.

(A) Polymers

(B) Carbon nano tubes

(C) Mega tubes

(D) Fullerenes

84. The melting point of particles in nano form ____________.

(A) Increases

(B) Decreases

(C) Remains same

(D) Increases then decreases

85. Which of the processes of materials was not described as Nanotechnology?

(A) Separation

(B) Creation

(C) Processing

(D) Consolidation

86. What’s the procedure in Top-down fabrication method?

Powder > Nano-particles’)”> (A) Nano-particle > Bulk > Powder

Powder > Nano-particles’)”> (B) Powder > Bulk > Nano-particles

Powder > Nano-particles’)”> (C) Nano-particles > Powder > Bulk

Powder > Nano-particles’)”> (D) Bulk > Powder > Nano-particles

87. For milling operations, what kind of environment is preferred?

(A) Basic

(B) Inert

(C) Active

(D) Acidic

88. CVD stands for ___________.

(A) Chemical vapor deposition

(B) Chemical vapor density

(C) Carbon vapor density

(D) Carbon vapor deposition

89. On both ends of the CNTs, which carbon nanostructure is placed?

(A) C60

(B) Diamond

(C) Graphite

(D) Benzene

90. Typical precursor helpful and used in sol-gel are

(A) Metal dioxides

(B) Metal alkoxides

(C) Metal oxides

(D) Metal fluorides

91. Which property of nanoparticles provides a driving force for diffusion?

(A) High surface area to volume ratio

(B) There is no such property

(C) Sintering

(D) Optical Properties

92. C60 is soluble in which of the following?

(A) Water

(B) Ammonia

(C) HCl

(D) Benzene

93. Quantum dots can be helpful and used in which of the following?

(A) Crystallography

(B) Optoelectronics

(C) Mechanics

(D) Quantum physics

94. The four types of artificial nanomaterial’s are ____________.

(A) Carbon-based, non-metallic, composites and ceramics

(B) Carbon-based, metallic, composites and ceramics

(C) Carbon-based, non-metallic, composites and dendrimers

(D) Carbon-based, metallic, composites and dendrimers

95. Which property of Nanomaterials makes them suitable to be helpful and used for elimination of pollutants?

(A) High purity

(B) Small size

(C) Better thermal conductivity

(D) Enhanced chemical activity

96. Which nanomaterial is helpful and used for cutting tools?

(A) Fullerene

(B) Aerogel

(C) Tungsten Carbide

(D) Gold

97. The main purpose of CNTs in fuel cells is _____.

(A) Catalyst

(B) Active medium

(C) Storage

(D) Production of energy

98. Egyptians were using ________ make-up for eyes.

(A) nanosteel

(B) nanocopper

(C) nanolead

(D) nanoaluminium