AIIMS 2019 Chemistry Hydrocarbons Assertion Reason Question
Assertion : 1-Butene has less dipole moment than 1-butyne. Reason : 1-Butyne has more s-character.
If both assertion and reason are true and reason is correct explanation of assertion.
If both assertion and reason are true and reason is not correct explanation of assertion.
If assertion is true but reason is false.
If both assertion and reason are false.
Correct Answer
Detailed Explanation
¹⁻Butyne (C₄H₆) exhibits sp hybridization, resulting in a linear structure that allows for a greater dipole moment due to the higher s-character (50%) compared to ¹⁻butene (C₄H₈), which has sp² hybridization and 33% s-character. The increased s-character in ¹⁻butyne leads to a stronger electronegativity difference between the carbon atoms, enhancing its dipole moment. Other options are not applicable as they do not provide relevant information or alternative answers to the question posed. Understanding hybridization and its impact on molecular polarity is crucial for predicting the physical properties of hydrocarbons.
Found an issue with this question?
Related Questions
More from Organic Chemistry
How many total carbons are found in palmitic acid?
In Lassaigne's extract of an organic compound, both nitrogen and sulphur are present, which gives blood red colour with Fe³⁺ due to the formation of -
How many geometrical isomers are possible in the following two alkenes? (i) CH₃−CH=CH−CH=CH−CH₃ (ii) CH₃−CH=CH−CH=CH−Cl