a.
Interpretation:The structural formula of 2,5-dimethyl-3-hexene is to be drawn.
Concept Introduction: The structural formula can be drawn from the name of a compound with the help of IUPAC principles.
a.
Answer to Problem 1RQ
The structural formula for 2,5-dimethyl-3-hexene is
Explanation of Solution
The main chain is six carbons and the two branches represent methyl groups. The
b.
Interpretation:The structural formula of 4-methyl-2-pentene is to be drawn.
Concept Introduction: The structural formula can be drawn from the name of a compound with the help of IUPAC principles.
b.
Answer to Problem 1RQ
The structural formula for 4-methyl-2-pentene is
Explanation of Solution
The main chain is five carbons and the one branch represents methyl group. The alkene is on the second bond so the above structure is correct.
c.
Interpretation:The structural formula of iodoethyne is to be drawn.
Concept Introduction: The structural formula can be drawn from the name of a compound with the help of IUPAC principles.
c.
Answer to Problem 1RQ
The structural formula for iodoethyne is
Explanation of Solution
The main chain is two carbons and the bond between them is triple which represents -yne. Also the I atom attached corresponds to iodo- prefix so the above structure is correct.
d.
Interpretation:The structural formula of 3-methylpentyne is to be drawn.
Concept Introduction: The structural formula can be drawn from the name of a compound with the help of IUPAC principles.
d.
Answer to Problem 1RQ
The structural formula for 3-methylpentyne is 
Explanation of Solution
The main chain is five carbons and the one branch on third carbon represents methyl group. The triple bond is on the first carbon representing -yne so the above structure is correct.
Chapter 20 Solutions
World of Chemistry, 3rd edition
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