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(a)
Interpretation:The structural formula of 3-methylpentanal needs to be drawn.
Concept Introduction:
(a)
Answer to Problem 2RQ
Explanation of Solution
The general formula for an aldehyde is R-CHO.
And the general formula for a ketone is R-COOR’.
Where R and R’ are alkyl group which may or may not be the same.
Therefore, the structural formula for 3-methylpentanal is
(b)
Interpretation:The structural formula of 3-methylpentanal needs to be drawn.
Concept Introduction:Ketone: A hydrocarbon derivativecontaining the carbonyl group bonded to twocarbon atoms.
Aldehyde: A hydrocarbon derivativecontaining the carbonylgroup at the end of thehydrocarbon chain.
(b)
Answer to Problem 2RQ
Explanation of Solution
The general formula for an aldehyde is RCHO.
And, the general formula for a ketone is RCOOR’.
Where R and R’ are alkyl group which may or may not be the same.
Therefore, the structural formula for 3-methyl-2-pentanone is
(c)
Interpretation:Thestructural formula of methyl phenyl ketone needs to be drawn.
Concept Introduction:Ketone: A hydrocarbon derivativecontaining the carbonyl group bonded to twocarbon atoms.
Aldehyde: A hydrocarbon derivativecontaining the carbonylgroup at the end of thehydrocarbon chain.
(c)
Answer to Problem 2RQ
Explanation of Solution
The general formula for an aldehyde is RCHO.
And the general formula for a ketone is RCOOR’.
Where R and R’ are alkyl group which may or may not be the same.
Therefore, the structural formula for methyl phenyl ketone.
(d)
Interpretation:The structural formula of 2-hydroxybutanal needs to be drawn.
Concept Introduction:Ketone: A hydrocarbon derivativecontaining the carbonyl group bonded to twocarbon atoms.
Aldehyde: A hydrocarbon derivativecontaining the carbonylgroup at the end of thehydrocarbon chain.
(d)
Answer to Problem 2RQ
Explanation of Solution
The general formula for an aldehyde is RCHO.
And the general formula for a ketone is RCOOR’.
Where R and R’ are alkyl groupsthat may or may not be the same.
Therefore, the structural formula for 2-hydroxybutanal is
(E)
Interpretation:The structural formula of propanol needs to be determined.
Concept Introduction:Ketone: Ketone: A hydrocarbon derivativecontaining the carbonyl group bonded to twocarbon atoms.
Aldehyde: A hydrocarbon derivativecontaining the carbonylgroup at the end of thehydrocarbon chain.
(E)
Answer to Problem 2RQ
Explanation of Solution
The general formula for an aldehyde is RCHO.
And the general formula for a ketone is RCOOR’.
Where R and R’ are alkyl groups which may or may not be the same.
Therefore, the structural formula for propanol is
Chapter 20 Solutions
World of Chemistry
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