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6H 1H 1H 2H 3.0 2.0 1.0 PPH 애 CH CH D: CH3-C-CH B CH3 CH CH2 OH

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Answer #1

CH3 CH он H2C H2 >Here four different protons are present. The OH(a) proton shows 1H-NMR peak at 4 ppm The CH2(b) protons shows doublet at 3.5 ppm by coupling with neighbouring CH(c) proton. >The CH(c) protons shows multiplet(Nontuplet) at - 2 ppm by coupling with neibouring CH2(b) and CH3(d) (SH) protons. >The 6H from CH3(d) protons shows doublet by coupling with CH(c) proton at 1ppm

So (B) is correct.

Please let me know if you have any doubt.

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