(a)
Interpretation:
The relation between all- trans- retinal and 11- cis- retinal should be determined.
Concept Introduction:
If two compounds have the same molecular formula but different chemical structures, then such phenomenon is termed as isomerism. Moreover, such compounds are termed as the isomers of each other. Isomerism is broadly divided into two broad categories, constitutional isomerism, and stereoisomers.
(b)
Interpretation:
The relation between all- trans- retinal and vitamin A should be determined.
Concept Introduction:
If two compounds have the same molecular formula but different chemical structures, then such phenomenon is termed as isomerism. Moreover, such compounds are termed as the isomers of each other. Isomerism is broadly divided into two broad categories, constitutional isomerism, and stereoisomers.
(c)
Interpretation:
The relation between 11-cis - retinol and vitamin A should be determined.
Concept Introduction:
If two compounds have the same molecular formula but different chemical structures, then such phenomenon is termed as isomerism. Moreover, such compounds are termed as the isomers of each other. Isomerism is broadly divided into two broad categories, constitutional isomerism, and stereoisomers.
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CONNECT IA GENERAL ORGANIC&BIO CHEMISTRY
- Which of the compounds can exist as enantiomers? A. Isopropyl chloride B. Bromochloromethane C. Sec-butyl chloride D. 1-chloro-2methylpentane a. A and B b. B and D c. C and D d. B and Carrow_forwardwhich of the following compound has gauche as it stable conformer? a. 1, 2- dicloroethane b. n- butane c. n- propane d. 1,2- dihydroxyethane which other factor along with torsion decide the stability of conformer?a. intermolecular hydrogen bonding b. intramolecular hydrogen bonding c. coordinate bonding d. ionic bondingarrow_forward5. Choose the incorrect option regarding Isomerism:A. They differ in both physical and chemical propertiesB. They have different molecular formula C. Chain isomers differ in the arrangement of their skeletonD. They have the same molecular formulaarrow_forward
- 13. Ethylethanoate and butanoic acid can be classified as A. positional isomers B. chain isomers C. functional isomers D. stereoisomers 14. Which of the following pairs are positional isomers A. trans-1,4-dichlorocyclohexane, cis-1,3-dichlorocyclopentane B. trans 1,4-dichlorocyclohexane, cis-1,4-dichlorocyclohexane C. 2-pentanol, Cyclopentanol D. 1,2-cycohexanediol, 1,3-cycohexanediol 15. Which of the following compounds will have zero dipole moment? A. cis-1,2-dibromoethylene B. 1,1-dibromoethylene C. trans-1,2-dibromoethylene D. all of these 16. Which of the following is not aromatic: A. cyclopentadienyl cation B. cyclopentadienyl anion C. Cyclopropenyl cation D. Cycloheptatrienyl cation 17. Which of the following compounds containing lone pair has the least tendency to donate its electrons? A. the lone pair in pyridine B. the lone pair in furan C. the lone pair in pyrole D. the lone pair in thiophenearrow_forwardPart II - Isomerism 1. Octane, C8H18, has 18 different constitutional or chain isomers. One of them, isooctane, is used as a standard in determining the octane rating of gasoline a. Draw the structural formulas for at least ten chain isomers of octane. b. Give the IUPAC name of each. c. Which of the isomers that you have drawn has the highest boiling point? Which has the lowest boiling point? Rationalize.arrow_forward77. Lactc id (CH CHOHCOOH) can exnibt 1. functional group isonierism 2 position isomerism 3. oplical isomerism 78. Esters 1. are prepared by reffuxing alcohols with acid anhydride 2 of long chain carboxylic acids undergo alkali hydrolysis to form soap. 3. react with ammonia to form aminesarrow_forward
- Illustrate examples of both types of isomers ? a. constitutional isomers b. stereoisomersarrow_forwardPart II - Isomerism 1. Octane, C8H18, has 18 different constitutional or chain isomers. One of them, isooctane, is used as a standard in determining the octane rating of gasoline a. Draw the structural formulas for at least ten chain isomers of octane. b. Give the IUPAC name of each. c. Which of the isomers that you have drawn has the highest boiling point? Which has the lowest boiling point? Rationalize. 2. Which of the following structural formulas represent identical compounds and which represent constitutional/structural isomers? Identical compounds: Constitutional isomers: CH3 i). CH3-C-CI ČH3 a). CH3CH2CHCH3 e). CH2CH2CHCH3 CI CI CI CH,CI b). CH3-C-CH3 f). CH3CH2CH2CH,CI j). CICH2 CI CH3 g). CICH,CHCH3 CH2CI k). CH3-CH-CH3 CI c). CH3CHCHCH3 CH2CH3 1). CH3CHCI h). CH3CHCH2CH2CI CI d). -CIarrow_forward26. Select the answer that best expresses the relationship between these two molecules: OH A. constitutional isomers B. conformers C. cis-trans isomers D. functional group isomers E. one is the oxidation product of the other 27. Select the answer that best expresses the relationship between these two molecules: کوال محمد 1 CI constitutional isomers 2 CI A. B. conformers C. cis-trans isomers, where 1=cis and 2=trans D. cis-trans isomers, where 1=trans and 2=cis E. functional group isomersarrow_forward
- Constitutional isomers are compounds which have the same molecular formula but different structural formulae. They are different compounds with different physical and chemical properties.a. Rearrange your model of n-hexane to make as many possible isomers of C6H14 as you can. Draw the structural formula and write down the IUPAC name for each isomer that you make.b. Constitutional isomers can also have different functional groups. Make all possible isomers of C3H8O. Write down the structural formulae and IUPAC names for all the compounds you make. Hint: Consider alcohol and ether functional groups.arrow_forwardHow many chiral centers (stereogenic centers) are in this molecule? A. 4 B. 6 C. 8 D. 10arrow_forwardMultple choice 4. To which family of organic compounds does CH₂CH₂CH₂CH₂CHO a. Alcohol b. Aldehyde c. Alkyne 5. Which statement is correct? belong? d. Ketone e. Carboxylic acid a. Aldehydes strongly resist oxidation. b. Ketones are easily oxidized. c. Carboxylic acid groups are easily oxidized. d. An ester may be hydrolyzed to give a carboxylic acid and an alcohol. e. Amides will not react with water. 6. Which statement describes addition polymers? a. They are made of monomers that have two functional groups. b. They may form between an organic acid and an amine. c. When they are produced, a small molecule (such as water) is also produced. d. all of the above e. None of the abovearrow_forward
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