
(a)
Interpretation:
Structural formula for the given
Concept Introduction:
Structure of the ketone can be drawn from the IUPAC name. In the IUPAC name, the parent chain of carbon atom can be identified and then the substituents present in it can also be identified. With these information, the structure for the given compound can be drawn. In a ketone the counting has to be done so that the carbonyl carbon atom gets the least numbering.
The structural representation of organic compound can be done in 2D and 3D. In two-dimensional representation, there are four types of representation in which an organic compound can be drawn. They are,
- • Expanded structural formula
- • Condensed structural formula
- • Skeletal structural formula
- • Line-angle structural formula
Structural formula which shows all the atoms in a molecule along with all the bonds that is connecting the atoms present in the molecule is known as Expanded structural formula.
Structural formula in which grouping of atoms are done and in which the central atoms along with the other atoms are connected to them are treated as group is known as Condensed structural formula.
Structural formula that shows the bonding between carbon atoms alone in the molecule ignoring the hydrogen atoms being shown explicitly is known as Skeletal structural formula.
Structural formula where a line represent carbon‑carbon bond and the carbon atom is considered to be present in each point and the end of lines is known as Line-angle structural formula.
(a)

Answer to Problem 4.38EP
The structural formula for 2-methyl-3-pentanone is,
Explanation of Solution
The given name of the compound is 2-methyl-3-pentanone. From the name it is understood that the parent carbon chain is pentane and it contains five carbon atoms. The parent chain can be drawn as shown below,
From the name of the given ketone, the substituents that are present can be identified. In this case, the substituent is a methyl group on second carbon atom. The carbonyl carbon atom is the third carbon atom.
Carbon atom has a valence of four. Hence, carbon atom can form four covalent bonds. The remaining bonds are satisfied by hydrogen atom. The structure is obtained as shown below,
Structural formula for the given ketone is drawn.
(b)
Interpretation:
Structural formula for the given ketone has to be drawn.
Concept Introduction:
Structure of the ketone can be drawn from the IUPAC name. In the IUPAC name, the parent chain of carbon atom can be identified and then the substituents present in it can also be identified. With these information, the structure for the given compound can be drawn. In a ketone the counting has to be done so that the carbonyl carbon atom gets the least numbering.
The structural representation of organic compound can be done in 2D and 3D. In two-dimensional representation, there are four types of representation in which an organic compound can be drawn. They are,
- • Expanded structural formula
- • Condensed structural formula
- • Skeletal structural formula
- • Line-angle structural formula
Structural formula which shows all the atoms in a molecule along with all the bonds that is connecting the atoms present in the molecule is known as Expanded structural formula.
Structural formula in which grouping of atoms are done and in which the central atoms along with the other atoms are connected to them are treated as group is known as Condensed structural formula.
Structural formula that shows the bonding between carbon atoms alone in the molecule ignoring the hydrogen atoms being shown explicitly is known as Skeletal structural formula.
Structural formula where a line represent carbon‑carbon bond and the carbon atom is considered to be present in each point and the end of lines is known as Line-angle structural formula.
(b)

Answer to Problem 4.38EP
The structural formula for 2-pentanone is,
Explanation of Solution
The given name of the compound is 2-pentanone. From the name it is understood that the parent carbon chain is pentane and it contains five carbon atoms. The parent chain can be drawn as shown below,
From the name of the given ketone, the substituents that are present can be identified. In this case, there are no substituents. The carbonyl carbon atom is the second carbon atom..
Carbon atom has a valence of four. Hence, carbon atom can form four covalent bonds. The remaining bonds are satisfied by hydrogen atom. The structure is obtained as shown below,
Structural formula for the given ketone is drawn.
(c)
Interpretation:
Structural formula for the given ketone has to be drawn.
Concept Introduction:
Structure of the ketone can be drawn from the IUPAC name. In the IUPAC name, the parent chain of carbon atom can be identified and then the substituents present in it can also be identified. With these information, the structure for the given compound can be drawn. In a ketone the counting has to be done so that the carbonyl carbon atom gets the least numbering.
The structural representation of organic compound can be done in 2D and 3D. In two-dimensional representation, there are four types of representation in which an organic compound can be drawn. They are,
- • Expanded structural formula
- • Condensed structural formula
- • Skeletal structural formula
- • Line-angle structural formula
Structural formula which shows all the atoms in a molecule along with all the bonds that is connecting the atoms present in the molecule is known as Expanded structural formula.
Structural formula in which grouping of atoms are done and in which the central atoms along with the other atoms are connected to them are treated as group is known as Condensed structural formula.
Structural formula that shows the bonding between carbon atoms alone in the molecule ignoring the hydrogen atoms being shown explicitly is known as Skeletal structural formula.
Structural formula where a line represent carbon‑carbon bond and the carbon atom is considered to be present in each point and the end of lines is known as Line-angle structural formula.
(c)

Answer to Problem 4.38EP
The structural formula for bromopropanone is,
Explanation of Solution
The given name of the compound is bromopropanone. From the name it is understood that the parent carbon chain is propane and it contains three carbon atoms. The parent chain can be drawn as shown below,
From the name of the given ketone, the substituents that are present can be identified. In this case a bromine atom is present as a substituent. The carbonyl carbon atom is the second carbon atom as that is the only possibility.
Carbon atom has a valence of four. Hence, carbon atom can form four covalent bonds. The remaining bonds are satisfied by hydrogen atom. The structure is obtained as shown below,
Structural formula for the given ketone is drawn.
(d)
Interpretation:
Structural formula for the given ketone has to be drawn.
Concept Introduction:
Structure of the ketone can be drawn from the IUPAC name. In the IUPAC name, the parent chain of carbon atom can be identified and then the substituents present in it can also be identified. With these information, the structure for the given compound can be drawn. In a ketone the counting has to be done so that the carbonyl carbon atom gets the least numbering.
The structural representation of organic compound can be done in 2D and 3D. In two-dimensional representation, there are four types of representation in which an organic compound can be drawn. They are,
- • Expanded structural formula
- • Condensed structural formula
- • Skeletal structural formula
- • Line-angle structural formula
Structural formula which shows all the atoms in a molecule along with all the bonds that is connecting the atoms present in the molecule is known as Expanded structural formula.
Structural formula in which grouping of atoms are done and in which the central atoms along with the other atoms are connected to them are treated as group is known as Condensed structural formula.
Structural formula that shows the bonding between carbon atoms alone in the molecule ignoring the hydrogen atoms being shown explicitly is known as Skeletal structural formula.
Structural formula where a line represent carbon‑carbon bond and the carbon atom is considered to be present in each point and the end of lines is known as Line-angle structural formula.
(d)

Answer to Problem 4.38EP
The structural formula for cyclopentanone is,
Explanation of Solution
The given name of the compound is cyclopentanone. From the name it is understood that the parent carbon chain is cyclic carbon chain that contains five carbon atoms. The parent chain can be drawn as shown below,
From the name of the given ketone, the substituents that are present can be identified. In this case, there are no substituents. The carbonyl carbon atom is any one of the carbon atom. Therefore, the structural formula of cyclopentanone can be drawn as shown below,
Structural formula for the given ketone is drawn.
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Chapter 4 Solutions
Organic And Biological Chemistry
- 6. For each of the following, fill in the synthesis arrows with reagents and show the intermediates. You DO NOT need to use the same number of arrows that are shown (you may use more or less), but the product must be formed from the reactant. Then write the mechanism of one step in the synthesis (you can choose which step to write the mechanism for), including all reagents required, clearly labeling the nucleophile and electrophile for each step, and using curved arrows to show the steps in the mechanism. a. b. OHarrow_forwardDraw the productsarrow_forwardDraw the correct productsarrow_forward
- E Organic Chemistry Maxwell Draw the correct products, in either order, for the ozonolysis reaction: 1) O3, CH2Cl2, -78 °C Product 1 + Product 2 2) Zn, HOAc Draw product 1. Select Draw Templates More C H O presented by M Draw product 2. Erase Select Draw Templates M / # # carrow_forward✓ edict the products of this organic reaction: ---- ။ A CH3–C−NH–CH2–C−CH3 + KOH ? Specifically, in the drawing area below draw the condensed structure of the product, or products, of this reaction. If there's more than one product, draw them in any arrangement you like, so long as they aren't touching. If there aren't any products because this reaction won't happen, check the No reaction box under the drawing area. Explanation Check Click anywhere to draw the first atom of your structure. C 2025 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center | Accessibiliarrow_forwardPredict the product of this organic reaction: A HO-C-CH3 + CH3NH2 P+ H2O Specifically, in the drawing area below draw the condensed structure of P. If there is no reasonable possibility for P, check the No answer box under the drawing area. Explanation Check Click anywhere to draw the first atom of your structure. marrow_forward
- H 1) OsO4, pyridine 2) Na2SO3 or NaHSO3 in H₂O 2 productsarrow_forward● Biological Macromolecules Naming and drawing cyclic monosaccharides Your answer is incorrect. • Row 1: Your answer is incorrect. Row 3: Your answer is incorrect. • Row 4: Your answer is incorrect. Try again... 0/5 Give the complete common name, including anomer and stereochemistry labels, of the following molecules. You will find helpful information in the ALEKS resource. CH2OH OH OH H H I H OH OH H] H CH2OH H OH ẞ-L-sorbose HOCH2 OH OH H HOCH2 H OH OH H OH H H CH2OH OH H H OH H I- H OH H OH Explanation Recheck W E R % 25 α B Y X & 5 D F G H McGraw Hill LLC. All Rights Reserved. Terms of Use | Pr Parrow_forwardWhat is the missing reactant in this organic reaction? + R -A HO IN + H₂O Specifically, in the drawing area below draw the skeletal ("line") structure of R. If there is more than one reasonable answer, you can draw any one of them. If there is no reasonable answer, check the No answer box under the drawing area. Note for advanced students: you may assume no products other than those shown above are formed. Explanation Check Click and drag to start drawing a structure. © 2025 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Centerarrow_forward
- Stuc X ctclix ALE X A ALE אן A ALEX Lab (195 X Nut x M Inb x NU X NUT X Unt x + → C www-awu.aleks.com/alekscgi/x/Isl.exe/10_u-lgNslkr7j8P3jH-IQ1g8NUi-mObKa_ZLx2twjEhK7mVG6PulJI006NcKTV37JxMpZuyrVCdQolLAKqp_7U3r1GUD3... New Chrome available: Naomi Question 26 of 39 (4 points) | Question Attempt: 1 of Unlimited Give the IUPAC name. 2,3-dimethylhexane Part: 1/2 Part 2 of 2 Draw the skeletal structure of a constitutional isomer of the alkane above that contains a different number of carbons in its longest chain. Skip Part Check Click and drag to start drawing a structure. 3 Finance headline Q Search mwa Harvard Intensifi... X Save For Later 00 dlo HB Submit Assignment 2025 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center | Accessibility a 9:11 PM 4/22/2025arrow_forwardPredict the product of this organic reaction: + NH2 HO A P+ H2O Specifically, in the drawing area below draw the skeletal ("line") structure of P. If there is no reasonable possibility for P, check the No answer box under the drawing area. Click and drag to start drawing a structure. ✓arrow_forward个 Stuc X ctclix ALE X A ALE × A ALE X Lab x (195 × Nut x M Inbx EF 目 → C www-awu.aleks.com/alekscgi/x/Isl.exe/10_u-IgNslkr7j8P3jH-IQ1g8NUi-mObKa_ZLx2twjEhK7mVG6PulJI006NcKTV37JxMpz Chapter 12 HW = Question 27 of 39 (5 points) | Question Attempt: 1 of Unlimited Part: 1/2 Part 2 of 2 Give the IUPAC name. Check 3 50°F Clear ©2025 McGraw Hill L Q Search webp a عالياكarrow_forward
- Introductory Chemistry: An Active Learning Approa...ChemistryISBN:9781305079250Author:Mark S. Cracolice, Ed PetersPublisher:Cengage Learning
