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Applied Chemistry Multiple Choice Questions | MCQs | Quiz

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Practice Applied Chemistry questions and answers for interviews, campus placements, online tests, aptitude tests, quizzes and competitive exams.

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Applied Chemistry Questions and Answers – Fullerenes and their Properties – 2

Posted on March 8, 2018 by Manish

This set of Applied Chemistry test focuses on “Fullerenes and their Properties – 2”.

1. The boron bucky balls are found in the year __________
a) 2001
b) 2002
c) 2003
d) 2007
View Answer

Answer: d
Explanation: The boron bucky ball is found in the year 2007. The types of Bucky balls are in which the boron atoms are present instead of carbon bucky balls.
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2. Boron bucky ball is more __________ than the buck minister fullerene.
a) Stable
b) Unstable
c) Complex
d) Simple
View Answer

Answer: a
Explanation: The stability of the boron bucky ball is more than that of the buck minister fullerene. The boron bucky ball is denoted by B80. It forms five or six bonds.

3. The boron bucky ball has _______ metal atoms.
a) 1
b) 2
c) 3
d) 4
View Answer

Answer: c
Explanation: The boron bucky balls have 80 carbon atoms forming a sphere which encloses a complex of three metal atoms and one nitrogen atom.

4. The boron bucky balls find potential use in __________
a) Diagnostics
b) Fuel
c) Fossils
d) Laboratories
View Answer

Answer: a
Explanation: The boron bucky balls find potential use in diagnostics. The boron bucky balls can also find potential use in therapeutics and organic solar cells.

5. The common method to produce fullerenes is to send __________ between nearby two graphite electrodes in an inert atmosphere.
a) Large current
b) Small current
c) Large potential
d) Small potential
View Answer

Answer: a
Explanation: The common method to produce fullerenes is to send large current between nearby two graphite electrodes in an inert atmosphere. It is common method used to produce the fullerenes.

6. After applying the large current between the graphite rods __________ is produced.
a) Nitrogen plasma arc
b) Carbon plasma arc
c) Oxygen plasma arcs
d) Hydrogen plasma arcs
View Answer

Answer: b
Explanation: After applying the large current between the graphite rods nearby it. Later those results in carbon plasma arc between the electrodes cools into sooty residue from many fullerenes can be isolated.
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7. The fullerenes are extracted from soot using __________
a) Single step procedure
b) Two step procedure
c) Three step procedure
d) Multi step procedure
View Answer

Answer: d
Explanation: The fullerenes are extracted from soot using multi step process. The preparation is usually done by applying the large current between the graphite rods.

8. Fullerenes are stable with __________ hybridization.
a) sp
b) sp2
c) sp3
d) sp4
View Answer

Answer: b
Explanation: Fullerenes are stable with sp2 hybridization of carbon atoms. The reactivity is increased by attaching active groups in their surfaces.

9. The electrophilic addition is done at _________ bonds.
a) 2-2
b) 3-3
c) 4-4
d) 6-6
View Answer

Answer: d
Explanation: The electrophilic addition is done at 6-6 bonds. They reduce the angle strain. This results in changing the sp2 hybridization to sp3 hybridization making it unstable.

10. When the other atoms tapped inside fullerenes to form inclusion compounds is known as ________
a) Exohedral fullerenes
b) Endohedral fullerenes
c) Exothermic fullerenes
d) Endothermic fullerenes
View Answer

Answer: b
Explanation: When the other atoms tapped inside fullerenes to form inclusion compounds is known as endohedral fullerenes. The example is Tb3NeC84 which is egg shaped fullerene.

11. When a method is used as an inclusion compound it is __________
a) Metallo fullerene
b) Non metallic fullerene
c) Buckminister fullerene
d) Boron bucky balls
View Answer

Answer: a
Explanation: When a method is used as an inclusion compound it is called as metallo fullerene. One of the examples is steel.

12. Some fullerenes are inherently chiral because they are _________ and have been successfully resolved.
a) D1 – symmetric
b) D3 – symmetric
c) D2 – symmetric
d) D4 – symmetric
View Answer

Answer: c
Explanation: Some fullerenes are inherently chiral because they are D4 – symmetric and have been successfully resolved. Fullerenes are sparingly soluble in many solvents. Common solvents for fullerenes are toulene.
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13. ___________ is exhibited by fullerenes.
a) Dual nature
b) Sp hybridization
c) Dehydrogenation
d) Dehalogenation
View Answer

Answer: a
Explanation: The dual nature is exhibited by fullerenes. The halogenation and hydrogenation are also done in the fullerenes.

14. C60 is oxidised to form _______
a) C60O22
b) C60O24
c) C60O23
d) C60O
View Answer

Answer: d
Explanation: C60O is formed when the C60 is oxidised. If it is mixed with disulphide, the radical is forms spontaneously, whose stability depends on steric factors.

15. The same composition produced at ______ when the C60 is ozonated.
a) 250K
b) 257K
c) 300K
d) 296K
View Answer

Answer: d
Explanation: The same composition produced at 296K when C60 is ozonated. The compound decomposes at 257 K into two forms of C60O.

Sanfoundry Global Education & Learning Series – Applied Chemistry.

To practice all areas of Applied Chemistry for tests, here is complete set of 1000+ Multiple Choice Questions and Answers.

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Deep Dive @ Sanfoundry:

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  6. Applied Chemistry Questions and Answers – Preparation, Properties and Applications of Some Compounds – 2
  7. Applied Chemistry Questions and Answers – Types of Polymers
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  10. Applied Chemistry Questions and Answers – Needs of Green Chemistry
Manish Bhojasia
Manish Bhojasia, a technology veteran with 20+ years @ Cisco & Wipro, is Founder and CTO at Sanfoundry. He is Linux Kernel Developer & SAN Architect and is passionate about competency developments in these areas. He lives in Bangalore and delivers focused training sessions to IT professionals in Linux Kernel, Linux Debugging, Linux Device Drivers, Linux Networking, Linux Storage, Advanced C Programming, SAN Storage Technologies, SCSI Internals & Storage Protocols such as iSCSI & Fiber Channel. Stay connected with him @ LinkedIn | Facebook | Twitter

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