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This is the answer to chapter 12, problem number 7 from the mcmurray organic chemistry textbook.
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This problem asks us what functional groups might the following molecules contain.
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Okay.
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So to do this, basically, we need to look at the chart.
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That's a couple pages back from this page in the textbook.
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And find, you know, or memorize the characteristic signal.
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That correspond to different functional groups.
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So for part a of this problem, we have a strong absorption at 1710 wave numbers.
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So 1710 wave number.
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That is characteristic of a carbonyl.
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So carbonyl.
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And without any other signals in here, we can say aldehyde or ketone.
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So molecule a here has an aldehyde or a ketone in it.
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Molecule b shows a strong absorption at 1540 wave number.
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So 1540...