M.Sc. (Semester II) (CBCS) Examination Mar/Apr-2018
Nano-Technology
CARBON AND NANOFORMS OF CARBON
Time: 2½ Hours
Max. Marks: 70
Instructions: Part-I, question 1 is compulsory. Attempt any four questions from Part II Figures to the right indicate full marks. Answers to the Part I and Part II are to be written in same answer booklet only.
Part I
Q.1

Rewrite the sentence after choosing correct answer from the given alternatives:
07
Diamond is a metastable allotrope of
Hydrogen
Nitrogen
Oxygen
Carbon
Graphic archaically referred to as plumbago, is a form of carbon.
Crystalline
Semi crystalline
Amorphous
Agglomerated
Diamond-like carbon is a class of carbon material.
Amorphous
Crystalline
Semi Amorphous
Semi crystalline
Activated carbon, also called activated
Charcoal
Chocolate
Coal
Coal tar
Carbon nanotubes are allotrope of carbon with nanostructure.
Cylindrical
Spherical
Cubic
Tube type
Nanotubes are members of the structural family
Nanowire
Nano cones
Fullerene
Nanoring
One-atom-thick sheets of carbon, called
Graphite layer
Graphite Sheet
Thin Film
Graphene
Q.1

Definition:
07
SP2 hybridization
Diamond
Graphite
Carbon black
CNT
CNF
Nanocatalyst
Page 2 of 2
SLR-UV-652
Part II
Answer any four of the following.
Q.2
Write the different forms of carbon and explain Diamond like carbon.
14
Q.3
What are carbon nonomaterials? Write briefly about the different types of carbon nanotubes.
14
Q.4
What are carbon nano fibers? Explain their structure and properties.
14
Q.5
Explain the different methods of synthesis of carbon nanomaterials.
14
Q.6
Write a short note about any two.
14
Purification of CNF
Amorphous carbon
Graphene
Q.7
Explain in detail about any two.
14
Carbon dots
Arc discharge
Opening of Fullerene Cage