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Identify the chiral molecule from the following. - Chemistry

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प्रश्न

Identify the chiral molecule from the following.

Which of the following is an example of chiral molecule?

पर्याय

  • 1-Bromobutane

  • 1,1-Dibromobutane

  • 2,3-Dibromobutane

  • 2-Bromobutane

MCQ
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उत्तर

2,3-Dibromobutane and 2-Bromobutane

Explanation:

At first, we need to make the structure of all compounds to say which is chiral or not.

(a) 

\[\begin{array}{cc}
\phantom{........}\ce{H}\\
\phantom{........}|\\
\ce{C - C - C - C - Br}\\
\phantom{........}|\\
\phantom{........}\ce{H}
\end{array}\]

(b)

\[\begin{array}{cc}
\phantom{.........}\ce{Br}\\
\phantom{........}|\\
\ce{C - C - C - C - Br}\\
\phantom{........}|\\
\phantom{........}\ce{H}
\end{array}\]

(c)

\[\begin{array}{cc}
\phantom{..}\ce{Br}\phantom{..}\ce{Br}\phantom{}\\
\phantom{}|\phantom{....}|\phantom{}\\
\ce{C - C - C - C}
\end{array}\]

(d)

\[\begin{array}{cc}
\phantom{......}\ce{Br}\\
\phantom{.....}|\\
\ce{C - C - C - C}\\
\phantom{.....}|\\
\phantom{.....}\ce{H}
\end{array}\]

Now, we can see that 2,3-Dibromobutane and 2-Bromobutane has a Chiral carbon (that carbon which has 4 different attachments).

Hence, It's a chiral molecule.

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Optical Isomerism in Halogen Derivatives
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पाठ 10: Halogen Derivatives - Exercises [पृष्ठ २३१]

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बालभारती Chemistry [English] Standard 12 Maharashtra State Board
पाठ 10 Halogen Derivatives
Exercises | Q 1. v. | पृष्ठ २३१

संबंधित प्रश्‍न

Optical activity of a molecule is associated with _______________


Which of the following shows optical isomerism?


Which among the following compound is not optically active?


Which of the foll9wing is INCORRECT for enantiomers?


Which among the following compounds in crystalline form is used for making Nicol's prism?


The number of optical isomers possible for 3, 4-dichloropentan-2-ol is ______.


Calcite crystals used in Nicol's prism are formed of ______.


Nicol's prism is made of ____________.


While assigning R, S configuration, the correct order of priority of groups attached to chiral carbon atom is ______


Identify chiral molecule/s from the following.

a.

\[\begin{array}{cc}
\ce{CH3 - CH - CH2 - CH3}\\
|\phantom{.........}\\
\ce{OH}\phantom{.......}
\end{array}\]

b.

\[\begin{array}{cc}
\ce{CH3 - CH2 - CH - CH2 - CH3}\\
|\phantom{..}\\
\ce{Br}\phantom{.}
\end{array}\]
c.

\[\ce{CH3 - CH2 - CH2 - CH2Br}\]

d.

\[\begin{array}{cc}
\ce{CH3 - CH - CH3 - CH3}\\
|\phantom{.........}\\
\ce{CH3}\phantom{.......}
\end{array}\]


Identify the chiral molecule from the following.


Identify chiral molecule/s from the following.

a.

\[\begin{array}{cc}
\ce{CH3 - CH - CH2 - CH3}\\
|\phantom{.........}\\
\ce{OH}\phantom{.......}
\end{array}\]

b.

\[\begin{array}{cc}
\ce{CH3 - CH2 - CH - CH2 - CH3}\\
|\phantom{.}\\
\ce{Br}\phantom{.}
\end{array}\]

c.

\[\ce{CH3 - CH - CH2 - CH2Br}\]

d.

\[\begin{array}{cc}
\ce{CH3 - CH - CH2 - CH3}\\
|\phantom{.........}\\
\ce{CH3}\phantom{......}
\end{array}\]


Identify the chiral molecule from the following.


Define the following:

Plane polarized light


What is a chiral carbon atom?


Identify chiral molecules from the following.

a.

\[\begin{array}{cc}
\ce{CH3 - CH - CH2 - CH3}\\
|\phantom{.........}\\
\ce{OH}\phantom{.......}
\end{array}\]

b.

\[\begin{array}{cc}
\ce{CH3 - CH2 - CH - CH2 - CH3}\\
|\phantom{..}\\
\ce{Br}\phantom{.}
\end{array}\]

c.

\[\begin{array}{cc}
\ce{CH3 - CH2 - CH2 - CH2 - Br}
\end{array}\]

d.

\[\begin{array}{cc}
\ce{CH3 - CH - CH3 - CH3}\\
|\phantom{.........}\\
\ce{CH3}\phantom{.......}
\end{array}\]


Identify the chiral molecule from the following.


Identify chiral molecule/s from the following.


Identify chiral molecule/s from the following.


Identify chiral molecule/s from the following.


Identify the chiral molecule from the following.


Identify the chiral molecule from the following.


Identify the chiral molecule from the following.


Identify chiral molecule/s from the following.


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