Concept explainers
Interpretation:
Why the given two
Concept Introduction:
Organic compounds are represented shortly by the molecular formula and structural formula. Each and every compound has its own molecular formula. Compounds can have same molecular formula but not same structural formula.
Isomers are the compounds that have same molecular formula but different structural formula. The main difference lies in the way the atoms are arranged in the structure. Isomers have different chemical and physical properties even when they have same molecular formula. This is known as Isomerism.
If there is difference only in the connectivity of the atoms in the molecule, then it is known as constitutional isomerism. The isomers are known as constitutional isomers. They will have same molecular formula and same
Continuous-chain alkane is the one in which all the carbon atoms are bonded in a linear chain (nonbranching chain).
Branched-chain alkane is an alkane which has atleast one branch in its structure that is attached to the continuous chain of carbon atoms.
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Chapter 1 Solutions
Organic And Biological Chemistry
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- Distinguish between isomerism and resonance. Distinguish between structural and geometric isomerism. When writing the various structural isomers, the most difficult task is identifying which are different isomers and which are identical to a previously written structurethat is, which are compounds that differ only by the rotation of a carbon single bond. How do you distinguish between structural isomers and those that are identical? Alkenes and cycloalkanes are structural isomers of each other. Give an example of each using C4H8. Another common feature of alkenes and cycloalkanes is that both have restricted rotation about one or more bonds in the compound, so both can exhibit cis- trans isomerism. What is required for an alkene or cycloalkane to exhibit cis-trans isomerism? Explain the difference between cis and trans isomers. Alcohols and ethers are structural isomers of each other, as are aldehydes and ketones. Give an example of each to illustrate. Which functional group in Table 21-4 can be structural isomers of carboxylic acids? What is optical isomerism? What do you look for to determine whether an organic compound exhibits optical isomerism? 1-Bromo-1-chloroethane is optically active whereas 1-bromo-2-chloroethane is not optically active. Explain.arrow_forwardHow does the structure of a cycloalkane differ from that of a straight-chain or branched-chain alkane?arrow_forwardWhat is the difference in bonding and in general molecular formula between an alkene and a cycloalkane with the same number of carbon atoms?arrow_forward
- Select those compounds that can be correctly called unsaturated and classify each one as an alkene or an alkyne: a.CH3CH2CH3f. b.CH3CH=CHCH3g. c.h.CH2=CHCH2CH3 d.i. e.arrow_forwardDraw the condensed or line-angle structure for an alkene with the formula C5H10. Name 6 Structural isomers of C5H10. They should three alkene and two cycloalkanearrow_forward4: Draw out the abbreviated structural formula of the following molecules. 4-Methyl-2-hexene 2-Methyl-2-hexene 2-Hexene 5: Draw the structure of 2-Butene, labeling the n bond and all the B bonds. 6: Draw all the structures possible with the formula CSH8.arrow_forward
- 38. Using a catalyst, two gaseous hydrocarbons, X and Y, were produced from heating hexane, C6H14. The gases were individually tested with aqueous bromine. For X, aqueous bromine became colorless, while for Y, the reddish-brown color of aqueous bromine was retained. Which of the following best describes the identity of the two hydrocarbons? (A) X= alkane, Y = alkene (B) X = alkene, Y = alkane (C) Both X and Y contain the same number of carbon atoms. (D) Both X and Y contain the same number of hydrogen atoms.arrow_forwardB.3 Isomers of C6H14 elgmo Complete the following table with the four isomers of the alkane C6H14. The first isomer is done for you: Give the IUPAC name of each. Hint: two isomers have one branch and two isomers have two branches and none of the isomers are ringed systems. Complete Structural Formula H H H H нн Нн Н-с-с-с-С-с-с-Н Ī Ī I I H. H H H H H Name: Hexane Complotn Ctrund 5.arrow_forwardA certain hydrocarbon has a molecular formula of C5H8. Which of the following is not a structural possibility for this hydrocarbon? (a) It is a cycloalkane. (b) It contains one ring and one double bond. (c) It contains two double bonds and no rings. (d) It is an alkyne.arrow_forward
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