Ethyne is more acidic than ethene and ethane. This increased acidity is primarily due to:

Q: What is the correct answer for NCERT11?

The correct answer is B. The hydrogen atoms in ethyne are attached to sp hybridized carbon atoms. The sp hybrid orbitals have 50% s-character, making them more electronegative than sp2 (33% s-character) or sp3 (25% s-character) orbitals. This higher electronegativity allows the sp carbon to attract the shared electron pair of the C-H bond more strongly, making the hydrogen more acidic and easier to remove as a proton.

Q: Ethyne is more acidic than ethene and ethane. This increased acidity is primarily due to:

The correct answer is B. The hydrogen atoms in ethyne are attached to sp hybridized carbon atoms. The sp hybrid orbitals have 50% s-character, making them more electronegative than sp2 (33% s-character) or sp3 (25% s-character) orbitals. This higher electronegativity allows the sp carbon to attract the shared electron pair of the C-H bond more strongly, making the hydrogen more acidic and easier to remove as a proton.

Q: What are the options for this NCERT11 question?

A. The presence of two pi bonds. · B. The sp hybridization of carbon atoms, leading to higher s-character and electronegativity. · C. The linear geometry of the molecule. · D. The ability to form hydrogen bonds.

Question

Ethyne is more acidic than ethene and ethane. This increased acidity is primarily due to:

FirstInTest · Accepted Answer

The hydrogen atoms in ethyne are attached to sp hybridized carbon atoms. The sp hybrid orbitals have 50% s-character, making them more electronegative than sp2 (33% s-character) or sp3 (25% s-character) orbitals. This higher electronegativity allows the sp carbon to attract the shared electron pair of the C-H bond more strongly, making the hydrogen more acidic and easier to remove as a proton.

Answer

The presence of two pi bonds.

Answer

The sp hybridization of carbon atoms, leading to higher s-character and electronegativity.

Answer

The linear geometry of the molecule.

Answer

The ability to form hydrogen bonds.

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