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Which of the following molecules are expected to exhibit intermolecular H-bonding
I. Acetic acid
II. o-nitrophenol
III. m-nitrophenol
IV. o-boric acid
- a)I, II, III
- b)I, II, IV
- c)I, III, IV
- d)II, III, IV
Correct answer is option 'C'. Can you explain this answer?
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Intermolecular hydrogen bonding occurs when a hydrogen atom is bonded to a highly electronegative atom (such as nitrogen, oxygen, or fluorine) and interacts with another electronegative atom in a different molecule. Based on this information, let's analyze each molecule to see if it exhibits intermolecular hydrogen bonding.
I. Acetic acid:
Acetic acid (CH3COOH) has a hydrogen atom bonded to an oxygen atom. Oxygen is highly electronegative, so it can form hydrogen bonds with other electronegative atoms. Therefore, acetic acid can exhibit intermolecular hydrogen bonding.
II. o-nitrophenol:
o-nitrophenol (C6H5NO3) has a hydrogen atom bonded to an oxygen atom. Oxygen can form hydrogen bonds, but in this case, the hydrogen atom is also attached to a highly electronegative nitrogen atom. This creates a stronger hydrogen bond potential. Therefore, o-nitrophenol can exhibit intermolecular hydrogen bonding.
III. m-nitrophenol:
m-nitrophenol (C6H5NO3) also has a hydrogen atom bonded to an oxygen atom and a highly electronegative nitrogen atom. Therefore, m-nitrophenol can also exhibit intermolecular hydrogen bonding.
IV. o-boric acid:
o-boric acid (H3BO3) has three hydrogen atoms bonded to an oxygen atom. Although oxygen can form hydrogen bonds, the presence of boron in the molecule weakens the electronegativity of the oxygen atoms. As a result, the hydrogen bonding potential is reduced, and o-boric acid is not expected to exhibit intermolecular hydrogen bonding.
Therefore, the molecules that are expected to exhibit intermolecular hydrogen bonding are I (acetic acid), III (m-nitrophenol), and IV (o-boric acid). Hence, the correct answer is option C (I, III, IV).
I. Acetic acid:
Acetic acid (CH3COOH) has a hydrogen atom bonded to an oxygen atom. Oxygen is highly electronegative, so it can form hydrogen bonds with other electronegative atoms. Therefore, acetic acid can exhibit intermolecular hydrogen bonding.
II. o-nitrophenol:
o-nitrophenol (C6H5NO3) has a hydrogen atom bonded to an oxygen atom. Oxygen can form hydrogen bonds, but in this case, the hydrogen atom is also attached to a highly electronegative nitrogen atom. This creates a stronger hydrogen bond potential. Therefore, o-nitrophenol can exhibit intermolecular hydrogen bonding.
III. m-nitrophenol:
m-nitrophenol (C6H5NO3) also has a hydrogen atom bonded to an oxygen atom and a highly electronegative nitrogen atom. Therefore, m-nitrophenol can also exhibit intermolecular hydrogen bonding.
IV. o-boric acid:
o-boric acid (H3BO3) has three hydrogen atoms bonded to an oxygen atom. Although oxygen can form hydrogen bonds, the presence of boron in the molecule weakens the electronegativity of the oxygen atoms. As a result, the hydrogen bonding potential is reduced, and o-boric acid is not expected to exhibit intermolecular hydrogen bonding.
Therefore, the molecules that are expected to exhibit intermolecular hydrogen bonding are I (acetic acid), III (m-nitrophenol), and IV (o-boric acid). Hence, the correct answer is option C (I, III, IV).
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Which of the following molecules are expected to exhibit intermolecular H-bondingI. Acetic acid II. o-nitrophenolIII. m-nitrophenolIV. o-boric acida)I, II, IIIb)I, II, IVc)I, III, IVd)II, III, IVCorrect answer is option 'C'. Can you explain this answer?
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Which of the following molecules are expected to exhibit intermolecular H-bondingI. Acetic acid II. o-nitrophenolIII. m-nitrophenolIV. o-boric acida)I, II, IIIb)I, II, IVc)I, III, IVd)II, III, IVCorrect answer is option 'C'. Can you explain this answer? for Class 11 2024 is part of Class 11 preparation. The Question and answers have been prepared according to the Class 11 exam syllabus. Information about Which of the following molecules are expected to exhibit intermolecular H-bondingI. Acetic acid II. o-nitrophenolIII. m-nitrophenolIV. o-boric acida)I, II, IIIb)I, II, IVc)I, III, IVd)II, III, IVCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 11 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following molecules are expected to exhibit intermolecular H-bondingI. Acetic acid II. o-nitrophenolIII. m-nitrophenolIV. o-boric acida)I, II, IIIb)I, II, IVc)I, III, IVd)II, III, IVCorrect answer is option 'C'. Can you explain this answer?.
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