In the following reactions, P, Q, R, and S are the major products.
The correct statement(s) about P, Q, R, and S is(are)
The correct statement(s) about P, Q, R, and S is(are)
Both P and Q have asymmetric carbon(s).
Both Q and R have asymmetric carbon(s).
Both P and R have asymmetric carbon(s).
P has asymmetric carbon(s), S does not have any asymmetric carbon.
The Correct Option is C, D
Approach Solution - 1
1. Asymmetric Carbon Definition:
An asymmetric carbon (or chiral center) is a carbon atom that is bonded to four different atoms or groups. If a carbon atom is bonded to four different groups, it is considered a chiral center and leads to chirality, meaning the molecule is non-superimposable on its mirror image.
2. Identify Asymmetric Carbons:
a. Product P:
To determine if product P contains asymmetric carbons, analyze its structure. Look for any carbon atoms that are connected to four different groups. If such a carbon is found, product P will contain an asymmetric carbon.
b. Product Q:
Similarly, for product Q, inspect the structure to identify any carbon atom that is bonded to four distinct groups. If such a carbon exists, then Q will have an asymmetric carbon.
c. Product R:
In product R, analyze the structure to locate any carbon attached to four different groups. If found, R will have an asymmetric carbon.
d. Product S:
Study product S and check whether any carbon atom is connected to four different groups. If no such carbon exists, product S will not have an asymmetric carbon.
3. Evaluation from Given Options:
a. Option 1: Both P and Q have asymmetric carbon(s):
To verify this option, check both product P and product Q. If both have at least one asymmetric carbon, then this option is correct.
b. Option 2: Both Q and R have asymmetric carbon(s):
Similarly, evaluate both products Q and R. If both have asymmetric carbons, this option is correct.
c. Option 3: Both P and R have asymmetric carbon(s):
Check both P and R. If both have at least one asymmetric carbon, then this option is valid.
d. Option 4: P has asymmetric carbon(s), S does not:
Finally, verify if product P contains asymmetric carbon(s), while product S does not. If this is true, then this option is correct.
4. Conclusion:
Based on the structural analysis of the products:
Both P and R have at least one asymmetric carbon, making Option 3 correct.
P has asymmetric carbon(s), while S does not have any asymmetric carbon, making Option 4 valid.
Final Answer:
Option 3: Both P and R have asymmetric carbon(s).
Option 4: P has asymmetric carbon(s), and S does not have any asymmetric carbon.
This analysis confirms the correct statements based on the structural analysis of the chemical products P, Q, R, and S.
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Approach Solution -2
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Concepts Used:
Amines - Chemical Properties
There are many chemical properties of amines.
The primary and secondary amines, including several amine derivatives, have a direct impact on their properties due to the presence of hydrogen bonding. The compounds containing phosphorus have a lower boiling point and the compounds containing amines and alcohol have a higher boiling point. The structure of alkanols is immensely similar to that of amine except the presence of the hydroxyl group. In such a case, oxygen has a higher electronegativity than that of nitrogen, so alkanol compounds are more acidic in nature in comparison to the amines.
On account of the ability to form hydrogen bonds, the amines have tendencies of high solubility in water. The amine molecules such as Ethyl, diethyl, triethyl, and Methyl are gaseous in nature. Whereas, higher weight amines have a solid structure and alkyl amines have a liquid structure. There is an ammonia smell to gaseous amines and a fishy smell to liquid amines. The solubility of amines entirely depends upon the number of carbon atoms in the molecule.