Organic Chemistry UPSC Questions

Chemistry

Organic Chemistry MCQ Questions


13.
The _____ is used to depict the bond projecting out of the plane of the paper and away from the observer.
A.
Triple bond
B.
Double bond
C.
Dashed-wedge
D.
Single bond
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ANSWER :
C. Dashed-wedge
14.
The bonds lying in plane of the paper are depicted by using a _____
A.
Thick dark line
B.
Normal line
C.
Curved line
D.
Double line
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ANSWER :
B. Normal line
15.
What are the physical devices that are used for a better visualisation and perception of three-dimensional shapes of organic molecules called as?
A.
Element models
B.
Atom models
C.
Graphic models
D.
Molecular models
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ANSWER :
D. Molecular models
16.
Which of the following are the types of molecular models?
A.
Framework model
B.
Ball-and-stick model
C.
Space filling model
D.
All the above
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ANSWER :
D. All the above
17.

Name the type of molecular model with the following clues given.
a) This model emphasizes the pattern of bonds of a molecule
b) Ignores the size of atom
c) In this model only the bonds connecting the atoms of a molecule and not the atoms themselves are shown.

A.

Framework model

B.

Ball-and-stick model

C.

Space filling model

D.

None of these

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ANSWER :

A. Framework model

18.
In _____, both the atoms and the bonds are shown.
A.
Framework model
B.
Ball-and-stick model
C.
Space filling model
D.
None of these
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ANSWER :
B. Ball-and-stick model