NANOCHEMISTRY MCQs

NANOCHEMISTRY MCQs

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

  1. geophysics
  2. Newtonian mechanics
  3. macro-dynamics
  4. quantum mechanics

quantum mechanics

What is a Bucky ball?

  1. Plastic explosives nanoparticle (C4)
  2. Nickname for Mercedes-Benz’s futuristic concept car (C111)
  3. A carbon molecule (C60)
  4. Concrete nanoparticle with a compressive strength of 20 nanonewtons (C20)

A carbon molecule (C60)

The nano tube may __________ without friction.

  1. Under laps
  2. Overlaps
  3. Slides
  4. Collides

Under laps

Which of these historical works of art contain?

  1. Lycurgus cup
  2. Medieval stained glass windows in churches
  3. Damascus steel swords
  4. All of A, B, and C

All of A, B, and C

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

  1. an oxygen atom is bigger than 1 nm
  2. One
  3. Seven
  4. Seventy

Seven

Optical tweezers –

  1. Are helpful and used to remove facial hair with miniaturized laser beams
  2. Don’t exist.
  3. Are a nanotechnology-based tool for stamp collectors
  4. Use light to manipulate particles as small as a single atom

Use light to manipulate particles as small as a single atom

What is graphene?

  1. A one-atom thick sheet of carbon
  2. A new material made from carbon nanotubes
  3. Thin film made from fullerenes
  4. A software tool to measure and graphically represents nanoparticles

A one-atom thick sheet of carbon

1 nanometer = __________ cm.

  1. 10-7
  2. 10-8
  3. 10-9
  4. 10-6

10-7

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

  1. Richard Feynman
  2. Albert Einstein
  3. Issac Newton
  4. Eric Drexler

Richard Feynman

What exactly is a quantum dot?

  1. Unexplained spots that appear in electron microscopy images of nanostructures smaller than 1 nanometer
  2. The sharpest possible tip of an Atomic Force Microscope
  3. A fictional term helpful and used in science fiction. for the endpoints of wormholes
  4. A semiconductor nanostructure that confines the motion of conduction band electrons, valence band holes, or excitations in all three spatial directions

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

The prefix ‘nano’ comes from a __________.

  1. Latin word meaning invisible
  2. Greek word meaning dwarf
  3. Spanish word meaning particle
  4. French word meaning billion

Latin word meaning invisible

The diameter of human hair is near about ______m

  1. 75000
  2. 75
  3. 7.5 x 10-9
  4. 7.5 x 10-5

7.5 x 10-5

What is the correct size of E.coli bacteria?

  1. 75000
  2. 5
  3. 200
  4. 2000

2000

The diameter of a Bucky ball is near about  ____.

  1. 1 nm
  2. 100 A°
  3. 1 A°
  4. 10 nm

1 nm

The hardest material found in nature is _______.

  1. diamond
  2. topaz
  3. steel
  4. quartz

diamond

1 meter = _______nm.

  1. 109
  2. 10-10
  3. 1010
  4. 10-9

109

The diameter of hydrogen atom is _________ nm.

  1. 10.
  2. 0.01
  3. 0.1
  4. 1

0.1

The correct size of a quantum dot is –

  1. 5
  2. 5 x 10-11
  3. 5 x 10-9
  4. 5 x 10-10

5 x 10-9

__________ are the extensions of Bucky balls.

  1. Geodesic domes
  2. Hexagons
  3. AFM and STM
  4. Carbon nanotubes

Carbon nanotubes

What is Nanotechnology?

  1. Carbon engineering
  2. Microphysics
  3. Small technology
  4. Atomic engineering

Atomic engineering

The diameter of fly ash particles is _______________.

  1. 100
  2. 10-20
  3. 20-30
  4. 5-10

100

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

  1. 1000
  2. 100
  3. 25
  4. 10

100

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

  1. 3
  2. 2
  3. 1
  4. 4

3

The correct size of nanoparticles is between __________ nm.

  1. 1 to 100
  2. 0.1 to 10
  3. 100 to 1000
  4. 0.01 to 1

1 to 100

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

  1. 60
  2. 20
  3. 75
  4. 100

60

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

  1. 1:10
  2. 1:100
  3. 10:1
  4. 100:1

1:10

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

  1. Scanning Electron Microscopy
  2. Transmission Electron Microscopy
  3. Scanning Tunneling Microscopy
  4. None of A, B, and C

Scanning Tunneling Microscopy

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

  1. Michael Faraday
  2. Eric Drexler
  3. Archimedes
  4. Richard Feynmann

Michael Faraday

Who coined the word ‘nanotechnology”?

  1. Richard Smalley
  2. Richard Feynmann
  3. SumioTijima
  4. Eric Drexler

Eric Drexler

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

  1. hair-dye.
  2. medicines
  3. metal articles
  4. Cosmetics for eyes

hair-dye

20000

20 micron = __________ nm.

  1. 20000
  2. 20 x 109
  3. 200
  4. 20 x 10-9

Which does not apply to nanotechnology?

  1. It is a general-purpose technology.
  2. It can be called Green technology.
  3. It involves rearrangement of atoms.
  4. Newtonian mechanics can describe it.

Newtonian mechanics can describe it.

The width of a typical DNA molecule is ___________nm.

  1. 1
  2. 10
  3. 5
  4. 2

2

The full form of STM is __________.

  1. Super Tensile Microscope
  2. Scientific Technical Microscope
  3. Systematic Technical Microscope
  4. Scanning Tunneling Microscope

Scanning Tunneling Microscope

Who had invented the famous Geodesic dome structure?

  1. Eric Drexler
  2. Faraday
  3. Richard Smalley
  4. Buckminster Fuller

Buckminster Fuller

Which ratio decides the efficiency of nano substances?

  1. Weight/volume
  2. Pressure/volume
  3. Volume/weight
  4. Surface area/volume

Surface area/volume

Which is/are class/classes of nanorods

  1. Metals
  2. Alloys
  3. Metal oxide and Metal sulphite
  4. All of A, B, and C

All of A, B, and C

The compressive strength of a nanotube ____________ its tensile strength.

  1. may be greater than
  2. is greater than
  3. is equal to
  4. is less than

is less than

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

  1. less than
  2. less than or equal to
  3. equal to
  4. greater than

greater than

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

  1. 3500
  2. 350
  3. 385
  4. 35

3500

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

  1. 1000
  2. 100
  3. 200
  4. 10

1000

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

  1. 350
  2. 385
  3. 3500
  4. 0

0

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

  1. 10
  2. 200
  3. 100
  4. 10000

10

What does ‘F’ stand for in AFM?

  1. Force
  2. Front
  3. Fine
  4. Flux

Force

The width of a carbon nanotube is nm.

  1. 1
  2. 10
  3. 2.5
  4. 1.3

1.3

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

  1. 20
  2. 40
  3. 75
  4. 15

20

Who prepared and explained nanotubes for the first time?

  1. Richard Feynmann
  2. Richard Smalley
  3. Eric Drexler
  4. Sumio Tijima

Sumio Tijima

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

  1. one double bond
  2. one triple bond
  3. two single bonds
  4. two triple bonds

one double bond

Which technique is bulk technique.

  1. TEM
  2. Single Crystal XRD
  3. SEM
  4. Powder XRD

Powder XRD

Nanoparticle production includes procedures like

  1. Formation of metal nuclei on different sizes
  2. Interaction among the formed particles
  3. Both a and b
  4. No interaction among the nano particles synthesized

Both a and b

The orientation of a crystalline surface is confidently defined in terms of _________.

  1. Miller indices
  2. Clauden indices
  3. Iijima indices
  4. None

Miller indices

Nano particles may interact with the support to be _________.

  1. Partially oxidized
  2. Partially reduced
  3. Both a and b
  4. None

Both a and b

Length of semiconductor nanorods are in the range of _______.

  1. 1-50 nm
  2. 50-100 nm
  3. 100-500 nm
  4. 1-50 micro meter

1-50 micro meter

Alpha hematite nanotubes show ___ dimensional magnetic ordering at temperature lesser than 300 K.

  1. 3
  2. 1
  3. 7
  4. 0

3

The physical methods of nanorods syntheses involves-

  1. Right-left approach
  2. Bottom up approach
  3. Left-right approach
  4. Top-down approach

Top-down approach

In confining and growing nano rods CNTs will act as

  1. Sieve
  2. Source of oxidant
  3. Support
  4. Template

Template

The particles of about 1 nm need ________ activation energy to enter either aggregation processes chemicals (Nano partials formations) or reactions to give to new chemicals

  1. No
  2. Lesser
  3. Higher
  4. None of A, B, and C

No

In nano synthesis, new unusual chemical reactions are due to which of the following?

  1. Equilibrium system
  2. Non equilibrium system
  3. Isothermal system
  4. Adiabatic process

Non equilibrium system

The most important problem regarding nano chemistry

  1. Determination of physical properties of nanoparticles
  2. Determination of size of particle.
  3. Determination of reactivity of particle
  4. Elucidation of relationship between size and chemical reactivity of particle

Elucidation of relationship between size and chemical reactivity of particle

Attention should be fochelpful and used on qualitative changes in particle properties as a function of ___________.

  1. Particle size
  2. Particle mass
  3. Particle density
  4. Particle numbers

Particle size

Stabilization of particles and their reactivity is affected by which of the following?

  1. No of particles
  2. Bulk properties
  3. Regardless to the surface properties
  4. Surface properties

Surface properties

Fabrics are extensively made out of nano materials like ______.

  1. Carbon nano tubes
  2. Polymers
  3. Mega tubes
  4. Fullerenes

Fullerenes

A considerable number of atoms pertaining to the surface _____ with the decrease in the particle size

  1. No effect
  2. Decrease
  3. Increase
  4. Both a and b

Increase

Chemical and physical properties of metal. nanoparticles of atoms were observed to change periodically depending upon

  1. Number of atoms in a particle
  2. Shape of particle
  3. Type of organization
  4. All of A, B, and C

All of A, B, and C

When fullerenes were discovered they were thought to be

  1. First example of diamond like molecule
  2. First example of spherical non molecule
  3. First example of spherical aromatic molecule
  4. None of A, B, and C.

First example of spherical aromatic molecule

When a large block of silicon wafer is reduced to smaller component and hence nonmaterial is formed this approach is called __________.

  1. Bottom-up
  2. Right to left
  3. Left to right
  4. Top-down

Top-down

Which idea of envisioned the construction of nanorobots

  1. Destruction of macromolecules to nano ones
  2. Building nanomaterials atom by atom
  3. Both of the above
  4. None of A, B, and C

Building nanomaterials atom by atom

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

  1. Infection
  2. Fever
  3. Tumor
  4. Cold

Tumor

The extensively helpful and used nano particles as catalyst is _______.

  1. Gold
  2. Copper
  3. Silver
  4. Cerium

Gold

__________of ceramic components are easier through nano structuring.

  1. Fabrication
  2. Coating
  3. Lubrication
  4. Wear

Fabrication

A fullerene is any molecule composed entirely of the carbon not in the form of hollow _____.

  1. Cuboid
  2. Tube
  3. Ellipsoid
  4. Sphere

Cuboid

The fullerenes are composed with _____________.

  1. Other carbon materials
  2. Graphite
  3. Lead
  4. Graphene sheets

Graphene sheets

In fullerenes, the graphene sheets are linked with __________.

  1. Decagonal rings
  2. Octagonal rings
  3. Trigonal rings
  4. Hexagonal rings

Hexagonal rings

Hollow tubes of very small dimensions are called as ____________.

  1. Mega tubes.
  2. Polymers
  3. Bucky ball clusters
  4. Carbon nano tubes

Carbon nano tubes

The smallest Bucky ball cluster is.

  1. C20
  2. C8
  3. C10
  4. C6

C20

The fullerenes that are larger in diameter than nano tubes and having walls of different thickness are

  1. Bucky ball clusters
  2. Carbon nano tubes
  3. Mega tubes
  4. Polymerson

Mega tubes

Spherical particles based on the multiple layers surrounding a buck ball core is called

  1. Nano materials
  2. Nano particles
  3. Nano clusters
  4. Nano onions

Nano onions

The vander-waals diameter of C60 is __________.

  1. 1.4nm
  2. 1.2nm
  3. 2.4nm
  4. 1.1nm

1.1nm

The boron Bucky balls find potential use in

  1. Laboratories
  2. Fuel
  3. Fossils
  4. Diagnostics

Diagnostics

The common method to produce fullerenes ______ is to send between nearby two graphite electrodes in an inert atmosphere.

  1. Small potential
  2. Small current
  3. Large potential
  4. Large current

Large current

In how many methods the CNT can be prepared?

  1. 1
  2. 4
  3. 3
  4. 2

4

Fullerenes are stable with ______hybridization.

  1. sp
  2. sp4
  3. sp3
  4. sp2

sp2

_______ is exhibited by fullerenes.

  1. De-halogenation
  2. Sp hybridization
  3. Dehydrogenation
  4. Dual nature

Dual nature

The same composition produced at when the C60 is ozonated.

  1. 296K
  2. 257K
  3. 300K
  4. 250K

296K

Graphite has what kind of layered structure.

  1. Three dimensional structure
  2. Pyramidal
  3. Bipyramidal
  4. Planar

Planar

The distance between the planes of the graphite is

  1. 0.335nm
  2. 0.223nm
  3. 0.124nm
  4. 0.876nm

0.335nm

The graphite is _______ anisotropic.

  1. Very less
  2. Lightly
  3. Not
  4. Highly

Highly

In oxygen containing atmospheres, the graphite readily converted into

  1. Carbon dioxide
  2. Carbon monoxide
  3. Carbonmonosulphide
  4. Carbondisulphide

Carbon dioxide

The graphite is

  1. Paramagnetic
  2. Ferrimagnetic
  3. Ferromagnetic
  4. Diamagnetic

Diamagnetic

Natural graphite is mostly helpful and used in __________.

  1. Fuel
  2. Laboratories.
  3. Catalyst.
  4. Refrigerators

Refrigerators

Carbon nano tubes are the sheets of graphite about

  1. 0.4nm
  2. 0.2nm
  3. 0.3nm
  4. 0.1nm

0.4nm

Chemical vapor decomposition is developed in an year _________.

  1. 2007
  2. 2002
  3. 2010
  4. 2001

2007

CNTs are the strongest and stiffest materials in ____________.

  1. Energy
  2. Ductility
  3. Elasticity
  4. Tensile strength

Tensile strength

Multi walled CNT are ___________ concentric nano tubos.

  1. Multiple
  2. Double
  3. Triple
  4. Single

Multiple

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

  1. Micro size
  2. Large size
  3. Nano size
  4. Small size

Small size

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

  1. Consumption
  2. Emission
  3. Absorption
  4. Collision

Absorption

The microwave absorptions are helpful and used for _____.

  1. Electric irons
  2. Satellites
  3. Radars
  4. Military radars

Military radars

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

  1. Resistance
  2. Inductance
  3. Conductance
  4. Impedance

Resistance

Sol-gel method is ________ approach.

  1. Down top
  2. Up bottom
  3. Top down
  4. Bottom up

Bottom up

Sol-gel method is _________ chemical process.

  1. Dry
  2. Semi solid
  3. Semi liquid
  4. Wet

Wet

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

  1. Gaseous phase
  2. Semi solid phase
  3. Solid phase
  4. Gel

Gel

Formation of an inorganic continuous network containing the metal centers with

  1. Hydro
  2. Nitro
  3. Oxo

Oxo

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

  1. 30mm
  2. 20mm
  3. 10nm
  4. 40nm

10nm

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

  1. Hydrogenation
  2. De-oxygenation
  3. Oxygenation
  4. Calcination

Calcination

Sol-gel method can produce ______ systems.

  1. Multi component
  2. Non uniform multi component
  3. Uniform multi component
  4. Non uniform multi component

Uniform multi component

The diameter of the nano wire is near about  ______.

  1. 10-9m
  2. 10-4m
  3. 10-8m
  4. 10-6m

10-9m

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

  1. Air medium
  2. Vacuum
  3. High vacuum chamber
  4. Low vacuum chamber

High vacuum chamber

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

  1. Transducers
  2. Resistors
  3. Capacitors
  4. Transistors

Transistors

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

  1. Silicon
  2. Nitrogen
  3. Hydrogen
  4. Carbon

Carbon

Industrial catalysts should have ____ surface area.

  1. Moderate
  2. Low
  3. High
  4. No.

High

The preferred opening angles of the nano cones are ________.

  1. 20, 30, 40
  2. 20, 40, 50
  3. 20, 40, 80
  4. 20, 40, 60

20, 40, 60

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

  1. Magnetic storage devices
  2. Magnetic lens
  3. Magneto meters
  4. Magnets

Magnetic storage devices

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

  1. Infection
  2. Fever
  3. Tumor
  4. Cold

Tumor

Fabrics are extensively made out of nano materials like ___.

  1. Fullerenes
  2. Carbon nano tubes
  3. Mega tubes
  4. Polymers

Fullerenes

The melting point of particles in nano form ____________.

  1. Increases
  2. Increases then decreases
  3. Remains same
  4. Decreases

Decreases

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

  1. Separation
  2. Consolidation
  3. Processing
  4. Creation

Creation

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

  1. Bulk > Powder > Nano-particles
  2. Powder > Bulk > Nano-particles:
  3. Nano-particles > Powder > Bulk
  4. Nano-particle > Bulk > Powder

Bulk > Powder > Nano-particles

For milling operations, what kind of environment is preferred?

  1. Inert
  2. Basic
  3. Active
  4. Acidic

Inert

CVD stands for ___________.

  1. Chemical vapor deposition
  2. Chemical vapor density
  3. Carbon vapor density
  4. Carbon vapor deposition

Chemical vapor deposition

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

  1. C60
  2. Diamond
  3. Graphite
  4. Benzene

C60

Typical precursor helpful and used in sol-gel are

  1. Metal alkoxides
  2. Metal dioxides
  3. Metal oxides
  4. Metal fluorides

Metal alkoxides

Which property of nanoparticles provides a driving force for diffusion?

  1. Optical Properties
  2. There is no such property
  3. Sintering
  4. High surface area to volume ratio

High surface area to volume ratio

C60 is soluble in which of the following?

  1. Water
  2. Benzene
  3. HCI
  4. Ammonia

Benzene

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

  1. Crystallography
  2. Quantum physics
  3. Mechanics
  4. Optoelectronics

Optoelectronics

The four types of artificial nanomaterial’s are ____________.

  1. Carbon-based, non-metallic, composites and ceramics
  2. Carbon-based, metallic, composites and ceramics
  3. Carbon-based, metallic, composites and dendrimers
  4. Carbon-based, non-metallic, composites and dendrimers

Carbon-based, metallic, composites and dendrimers

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

  1. High purity
  2. Enhanced chemical activity
  3. Better thermal conductivity
  4. Small size

Enhanced chemical activity

Which nanomaterial is helpful and used for cutting tools?

  1. Fullerene
  2. Aerogel
  3. Gold
  4. Tungsten Carbide

Tungsten Carbide

The main purpose of CNTs in fuel cells is _____.

  1. Storage
  2. Active medium
  3. Catalyst
  4. Production of energy

Storage

Egyptians were using ________ make-up for eyes. to prepare

  1. nanolead
  2. nanocopper
  3. nanosteel
  4. nanoaluminium

nanolead

More Physical Chemistry MCQs

  1. PHYSICAL CHEMISTRY MCQs
  2. CHEMICAL AND IONIC EQUILIBRIA MCQs
  3. NUCLEAR CHEMISTRY MCQs
  4. CHEMICAL THERMODYNAMICS MCQs
  5. NANOCHEMISTRY MCQs
  6. CHEMICAL KINETICS MCQs
  7. SURFACE CHEMISTRY MCQs
  8. COLLOIDAL STATE MCQs
  9. ELECTROCHEMISTRY MCQs
  10. SPECTROSCOPY MCQs
  11. SOLUTION CHEMISTRY AND PHASE EQUILIBRIA MCQs
  12. PHOTOCHEMISTRY AND MOLECULAR SYMMETRY MCQs
  13. CHEMISTRY MCQs From all subjects of  Chemistry

Related Posts:

Contents Copyrights reserved by T4Tutorials