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For the molecule below,


Consider the following statements about its room temperature spectral data
(A) 1H NMR has singlets at 5.48 and 3.18 ppm
(B) 1H NMR has multiplet at 5.48 and singlet at 3.18 ppm
(C) IR has CO stretching bands at 1950 and 1860 cm–1
(D) IR has only one CO stretching band at 1900 cm–1 .
The correct pair of statements is
  • a)
    A and C only
  • b)
    B and C only
  • c)
    A and D only
  • d)
    B and D only
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
For the molecule below,Consider the following statements about its roo...

Since, the molecule is C2 –symmetric. So, two COs will give two absorption bands in IR spectrum
Hence, the correct pair of statements is A and C only.
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For the molecule below,Consider the following statements about its room temperature spectral data(A) 1H NMR has singlets at 5.48 and 3.18 ppm(B) 1H NMR has multiplet at 5.48 and singlet at 3.18 ppm(C) IR has CO stretching bands at 1950 and 1860 cm–1(D) IR has only one CO stretching band at 1900 cm–1 .The correct pair of statements isa)A and C onlyb)B and C onlyc)A and D onlyd)B and D onlyCorrect answer is option 'A'. Can you explain this answer?
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For the molecule below,Consider the following statements about its room temperature spectral data(A) 1H NMR has singlets at 5.48 and 3.18 ppm(B) 1H NMR has multiplet at 5.48 and singlet at 3.18 ppm(C) IR has CO stretching bands at 1950 and 1860 cm–1(D) IR has only one CO stretching band at 1900 cm–1 .The correct pair of statements isa)A and C onlyb)B and C onlyc)A and D onlyd)B and D onlyCorrect answer is option 'A'. Can you explain this answer? for UGC NET 2025 is part of UGC NET preparation. The Question and answers have been prepared according to the UGC NET exam syllabus. Information about For the molecule below,Consider the following statements about its room temperature spectral data(A) 1H NMR has singlets at 5.48 and 3.18 ppm(B) 1H NMR has multiplet at 5.48 and singlet at 3.18 ppm(C) IR has CO stretching bands at 1950 and 1860 cm–1(D) IR has only one CO stretching band at 1900 cm–1 .The correct pair of statements isa)A and C onlyb)B and C onlyc)A and D onlyd)B and D onlyCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for UGC NET 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for For the molecule below,Consider the following statements about its room temperature spectral data(A) 1H NMR has singlets at 5.48 and 3.18 ppm(B) 1H NMR has multiplet at 5.48 and singlet at 3.18 ppm(C) IR has CO stretching bands at 1950 and 1860 cm–1(D) IR has only one CO stretching band at 1900 cm–1 .The correct pair of statements isa)A and C onlyb)B and C onlyc)A and D onlyd)B and D onlyCorrect answer is option 'A'. Can you explain this answer?.
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