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Direction (Q. Nos. 1-6) This section contains 6 multiple choice questions. Each question has four
choices (a), (b), (c) and (d), out of which ONLY ONE option is correct.
choices (a), (b), (c) and (d), out of which ONLY ONE option is correct.
Q. Which pair of molecules has the strongest dipole-dipole interactions?
- a)NH3 and CH4
- b)CH4 and CH4
- c)CO3 and CO2
- d)NH3 and NH3
Correct answer is 'D'. Can you explain this answer?
Most Upvoted Answer
Direction (Q. Nos. 1-6) This section contains 6multiple choice questio...
NH3 and NH3. Both polar, asymmetric molecules. CH4 is nonpolar. CO2 is symetrical.
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Direction (Q. Nos. 1-6) This section contains 6multiple choice questio...
Strongest Dipole-Dipole Interactions
The correct answer is (d) NH3 and NH3.
Explanation:
Dipole-dipole interactions occur between polar molecules due to the attraction between the positive and negative ends of the molecules. The strength of the dipole-dipole interactions depends on the magnitude of the dipole moment and the distance between the molecules.
NH3 and NH3 are both polar molecules with a dipole moment. The nitrogen atom in NH3 is more electronegative than the hydrogen atoms, which results in a partial negative charge on the nitrogen atom and a partial positive charge on the hydrogen atoms. The dipole moment of NH3 is higher than that of any other molecule in the given options.
Therefore, NH3 and NH3 have the strongest dipole-dipole interactions among the given options.
The other options can be explained as follows:
a) NH3 and CH4: CH4 is a nonpolar molecule since it has a symmetrical tetrahedral shape, and its dipole moment is zero. Therefore, NH3 and CH4 have weak dipole-dipole interactions.
b) CH4 and CH4: Both CH4 molecules have no dipole moment, and they are nonpolar. Hence, CH4 and CH4 have no dipole-dipole interactions.
c) CO3 and CO2: CO3 has a dipole moment, but CO2 is a linear molecule with no dipole moment. Therefore, CO3 and CO2 have weak dipole-dipole interactions.
The correct answer is (d) NH3 and NH3.
Explanation:
Dipole-dipole interactions occur between polar molecules due to the attraction between the positive and negative ends of the molecules. The strength of the dipole-dipole interactions depends on the magnitude of the dipole moment and the distance between the molecules.
NH3 and NH3 are both polar molecules with a dipole moment. The nitrogen atom in NH3 is more electronegative than the hydrogen atoms, which results in a partial negative charge on the nitrogen atom and a partial positive charge on the hydrogen atoms. The dipole moment of NH3 is higher than that of any other molecule in the given options.
Therefore, NH3 and NH3 have the strongest dipole-dipole interactions among the given options.
The other options can be explained as follows:
a) NH3 and CH4: CH4 is a nonpolar molecule since it has a symmetrical tetrahedral shape, and its dipole moment is zero. Therefore, NH3 and CH4 have weak dipole-dipole interactions.
b) CH4 and CH4: Both CH4 molecules have no dipole moment, and they are nonpolar. Hence, CH4 and CH4 have no dipole-dipole interactions.
c) CO3 and CO2: CO3 has a dipole moment, but CO2 is a linear molecule with no dipole moment. Therefore, CO3 and CO2 have weak dipole-dipole interactions.
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Direction (Q. Nos. 1-6) This section contains 6multiple choice questions. Each question has fourchoices (a), (b), (c) and (d), out of which ONLY ONE option is correct.Q.Which pair of molecules has the strongest dipole-dipole interactions?a)NH3 and CH4b)CH4 and CH4c)CO3 and CO2d)NH3 and NH3Correct answer is 'D'. Can you explain this answer? for Class 11 2025 is part of Class 11 preparation. The Question and answers have been prepared according to the Class 11 exam syllabus. Information about Direction (Q. Nos. 1-6) This section contains 6multiple choice questions. Each question has fourchoices (a), (b), (c) and (d), out of which ONLY ONE option is correct.Q.Which pair of molecules has the strongest dipole-dipole interactions?a)NH3 and CH4b)CH4 and CH4c)CO3 and CO2d)NH3 and NH3Correct answer is 'D'. Can you explain this answer? covers all topics & solutions for Class 11 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Direction (Q. Nos. 1-6) This section contains 6multiple choice questions. Each question has fourchoices (a), (b), (c) and (d), out of which ONLY ONE option is correct.Q.Which pair of molecules has the strongest dipole-dipole interactions?a)NH3 and CH4b)CH4 and CH4c)CO3 and CO2d)NH3 and NH3Correct answer is 'D'. Can you explain this answer?.
Direction (Q. Nos. 1-6) This section contains 6multiple choice questions. Each question has fourchoices (a), (b), (c) and (d), out of which ONLY ONE option is correct.Q.Which pair of molecules has the strongest dipole-dipole interactions?a)NH3 and CH4b)CH4 and CH4c)CO3 and CO2d)NH3 and NH3Correct answer is 'D'. Can you explain this answer? for Class 11 2025 is part of Class 11 preparation. The Question and answers have been prepared according to the Class 11 exam syllabus. Information about Direction (Q. Nos. 1-6) This section contains 6multiple choice questions. Each question has fourchoices (a), (b), (c) and (d), out of which ONLY ONE option is correct.Q.Which pair of molecules has the strongest dipole-dipole interactions?a)NH3 and CH4b)CH4 and CH4c)CO3 and CO2d)NH3 and NH3Correct answer is 'D'. Can you explain this answer? covers all topics & solutions for Class 11 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Direction (Q. Nos. 1-6) This section contains 6multiple choice questions. Each question has fourchoices (a), (b), (c) and (d), out of which ONLY ONE option is correct.Q.Which pair of molecules has the strongest dipole-dipole interactions?a)NH3 and CH4b)CH4 and CH4c)CO3 and CO2d)NH3 and NH3Correct answer is 'D'. Can you explain this answer?.
Solutions for Direction (Q. Nos. 1-6) This section contains 6multiple choice questions. Each question has fourchoices (a), (b), (c) and (d), out of which ONLY ONE option is correct.Q.Which pair of molecules has the strongest dipole-dipole interactions?a)NH3 and CH4b)CH4 and CH4c)CO3 and CO2d)NH3 and NH3Correct answer is 'D'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 11.
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