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Which of the following statements about ethyne is incorrect?
- a)Ethyne is a linear molecule.
- b)Ethyne has a triple bond between carbon atoms.
- c)Ethyne is more reactive than ethene and ethane.
- d)Ethyne is a nonpolar molecule.
Correct answer is option 'D'. Can you explain this answer?
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Which of the following statements about ethyne is incorrect?a)Ethyne i...
Ethyne, also known as acetylene, is a hydrocarbon compound composed of two carbon atoms and two hydrogen atoms. It is a highly reactive molecule due to the presence of a triple bond between the carbon atoms. Let's analyze each statement to determine which one is incorrect.
1. Ethyne is a linear molecule.
- This statement is correct. Ethyne is a linear molecule, meaning that the carbon atoms and hydrogen atoms lie in a straight line.
2. Ethyne has a triple bond between carbon atoms.
- This statement is correct. Ethyne is characterized by a triple bond between the two carbon atoms, which consists of one sigma bond and two pi bonds. The triple bond is made up of one sigma bond formed by the overlap of two sp hybrid orbitals and two pi bonds formed by the overlap of two sets of p orbitals.
3. Ethyne is more reactive than ethene and ethane.
- This statement is correct. Ethyne is more reactive than ethene and ethane due to the presence of the triple bond. The triple bond in ethyne is highly reactive and can undergo addition reactions with various reagents. In contrast, ethene has a double bond and ethane has only single bonds, making them less reactive compared to ethyne.
4. Ethyne is a nonpolar molecule.
- This statement is incorrect. Ethyne is a polar molecule. Although the carbon-carbon triple bond is symmetrical, the difference in electronegativity between carbon and hydrogen atoms leads to a polar covalent bond. The carbon atom is more electronegative than the hydrogen atom, resulting in a partial negative charge on the carbon atom and a partial positive charge on the hydrogen atoms.
In summary, the incorrect statement is that "Ethyne is a nonpolar molecule" (option D). Ethyne is actually a polar molecule due to the electronegativity difference between carbon and hydrogen atoms.
1. Ethyne is a linear molecule.
- This statement is correct. Ethyne is a linear molecule, meaning that the carbon atoms and hydrogen atoms lie in a straight line.
2. Ethyne has a triple bond between carbon atoms.
- This statement is correct. Ethyne is characterized by a triple bond between the two carbon atoms, which consists of one sigma bond and two pi bonds. The triple bond is made up of one sigma bond formed by the overlap of two sp hybrid orbitals and two pi bonds formed by the overlap of two sets of p orbitals.
3. Ethyne is more reactive than ethene and ethane.
- This statement is correct. Ethyne is more reactive than ethene and ethane due to the presence of the triple bond. The triple bond in ethyne is highly reactive and can undergo addition reactions with various reagents. In contrast, ethene has a double bond and ethane has only single bonds, making them less reactive compared to ethyne.
4. Ethyne is a nonpolar molecule.
- This statement is incorrect. Ethyne is a polar molecule. Although the carbon-carbon triple bond is symmetrical, the difference in electronegativity between carbon and hydrogen atoms leads to a polar covalent bond. The carbon atom is more electronegative than the hydrogen atom, resulting in a partial negative charge on the carbon atom and a partial positive charge on the hydrogen atoms.
In summary, the incorrect statement is that "Ethyne is a nonpolar molecule" (option D). Ethyne is actually a polar molecule due to the electronegativity difference between carbon and hydrogen atoms.
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Which of the following statements about ethyne is incorrect?a)Ethyne i...
Ethyne is a polar molecule due to the presence of a triple bond between carbon atoms.
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Which of the following statements about ethyne is incorrect?a)Ethyne is a linear molecule.b)Ethyne has a triple bond between carbon atoms.c)Ethyne is more reactive than ethene and ethane.d)Ethyne is a nonpolar molecule.Correct answer is option 'D'. Can you explain this answer?
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