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The correct statement(s) about the compound H3C(OH)HC - CH = CH - CH(OH)CH3(X) is (are)
[JEE 2009]
  • a)
    The total numbre of stereoisomers possible for X is 6
  • b)
    The total number of diastereomers possible for X is 3
  • c)
    If the stereochemistry about the double bond in X is trans, the number of enantiomers possible for X is 4.
  • d)
    If the stereochemistry about the double bond in X is cis, the number of enantiomers possible for X is 2.
Correct answer is option 'A,D'. Can you explain this answer?
Verified Answer
The correct statement(s) about the compound H3C(OH)HC - CH = CH - CH(O...
Correct option  (a, d)
Explanation:

The various isomers of X are





X has six stereoisomers (I-IV). The total number of diastereomers of X are more than three eg, I+ II, I+ III, I+ IV, I+ V, I+ VI etc. When stereochemisty at double bond is trans it has only two enantiomers (V and VI). When stereochemistry at double bond is cis, it has two enantiomers II and III. Hence, only A and D are the correct answers.
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The correct statement(s) about the compound H3C(OH)HC - CH = CH - CH(O...
Answer:
The given compound is H3C(OH)HC - CH = CH - CH(OH)CH3(X). Let's analyze the given options one by one.

a) The total number of stereoisomers possible for X is 6
To determine the total number of stereoisomers, we need to consider the number of chiral centers in the compound. A chiral center is an atom that is bonded to four different groups. In this compound, there are two chiral centers - the carbon connected to the hydroxyl group on the left side and the carbon connected to the hydroxyl group on the right side.

The number of stereoisomers for a compound with n chiral centers is 2^n. Therefore, for this compound, the total number of stereoisomers possible for X would be 2^2 = 4.

b) The total number of diastereomers possible for X is 3
Diastereomers are stereoisomers that are not mirror images of each other. To determine the total number of diastereomers, we need to consider the different possible arrangements of the substituents on the chiral centers.

For the left chiral center, there are two possible arrangements - (R) and (S). For the right chiral center, there are also two possible arrangements - (R) and (S). Therefore, there are a total of 2 x 2 = 4 possible arrangements of the substituents on the chiral centers.

However, since the compound has a double bond, the two chiral centers are not independent. The configuration of one chiral center affects the configuration of the other chiral center. Hence, we cannot consider all 4 arrangements as diastereomers. Only the arrangements that have different configurations at both chiral centers are diastereomers.

Therefore, the total number of diastereomers possible for X is 3.

c) If the stereochemistry about the double bond in X is trans, the number of enantiomers possible for X is 4
Enantiomers are stereoisomers that are non-superimposable mirror images of each other. The number of enantiomers is always equal to the number of stereoisomers. Therefore, if the stereochemistry about the double bond in X is trans, the number of enantiomers possible for X would still be 4.

d) If the stereochemistry about the double bond in X is cis, the number of enantiomers possible for X is 2
Again, since enantiomers are non-superimposable mirror images, the number of enantiomers is equal to the number of stereoisomers. Therefore, if the stereochemistry about the double bond in X is cis, the number of enantiomers possible for X would be 2.

Conclusion:
The correct statements are option 'A' and 'D'. The total number of stereoisomers possible for X is 4 and if the stereochemistry about the double bond in X is cis, the number of enantiomers possible for X is 2.
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The correct statement(s) about the compound H3C(OH)HC - CH = CH - CH(OH)CH3(X) is (are)[JEE 2009]a)The total numbre of stereoisomers possible for X is 6b)The total number of diastereomers possible for X is 3c)If the stereochemistry about the double bond in X is trans, the number of enantiomers possible for X is 4.d)If the stereochemistry about the double bond in X is cis, the number of enantiomers possible for X is 2.Correct answer is option 'A,D'. Can you explain this answer?
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The correct statement(s) about the compound H3C(OH)HC - CH = CH - CH(OH)CH3(X) is (are)[JEE 2009]a)The total numbre of stereoisomers possible for X is 6b)The total number of diastereomers possible for X is 3c)If the stereochemistry about the double bond in X is trans, the number of enantiomers possible for X is 4.d)If the stereochemistry about the double bond in X is cis, the number of enantiomers possible for X is 2.Correct answer is option 'A,D'. Can you explain this answer? for JEE 2024 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about The correct statement(s) about the compound H3C(OH)HC - CH = CH - CH(OH)CH3(X) is (are)[JEE 2009]a)The total numbre of stereoisomers possible for X is 6b)The total number of diastereomers possible for X is 3c)If the stereochemistry about the double bond in X is trans, the number of enantiomers possible for X is 4.d)If the stereochemistry about the double bond in X is cis, the number of enantiomers possible for X is 2.Correct answer is option 'A,D'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The correct statement(s) about the compound H3C(OH)HC - CH = CH - CH(OH)CH3(X) is (are)[JEE 2009]a)The total numbre of stereoisomers possible for X is 6b)The total number of diastereomers possible for X is 3c)If the stereochemistry about the double bond in X is trans, the number of enantiomers possible for X is 4.d)If the stereochemistry about the double bond in X is cis, the number of enantiomers possible for X is 2.Correct answer is option 'A,D'. Can you explain this answer?.
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