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Chapter 4: Q.31. (page 128)

Question: Draw the products of each combustion reaction.

a.

b.

Short Answer

Expert verified

Answer

a. CH3CH2CH3+5O2→Flame3CO2+4H2O+Heat

b.

Step by step solution

01

Combustion reaction

Combustion is a type of oxidation reaction.

Hydrocarbons burn in the presence of oxygen to produce carbon dioxide and water. The combustion reaction also releases a lot of heat energy.

Due to the release of a lot of heat energy during combustion,

many alkanes are used as fuels in natural gas, gasoline, etc.

The combustion reaction of all hydrocarbons always results in the formation of same products, which are carbon dioxide and water.

02

Products of the combustion reaction

a. The following reaction is the combustion of propane. It reacts with oxygen to produce carbon dioxide and water, as shown below:

CH3CH2CH3+5O2→Flame3CO2+4H2O+Heat

b. The following reaction is the combustion of cyclohexane. It also reacts with oxygen to form carbon dioxide and water, as shown below:

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Most popular questions from this chapter

Question:Give IUPAC name of each compound.

a. (CH3)3-CH2-CH-(CH2CH3)2

b.

c.CH3(CH2)3CH(CH2CH2CH3)CH(CH3)2

d.

Question: Draw the structure of all compounds that fit the following descriptions. a. Five constitutional isomers having the molecular formula C4H8b. Nine constitutional isomers having the molecular formula C7H16c. Twelve constitutional isomers having the molecular formula C6H12 and containing one ring

Question: Cyclopropane and cyclobutane have similar strain energy despite the fact that the C-C-C bond angles of cyclopropane are much smaller than those of cyclobutane. Suggest an explanation for this observation, considering all sources of strain discussed in Chapter 4.

Question: Haloethanes(CH3CH2X,X=Cl,Br,I) have similar barriers to rotation (13.4–15.5 kJ/mol) despite the fact that the size of the halogen increases, role="math" localid="1648639622891" Cl→Br→I. Offer an explanation.

Question: For each compound drawn below:

a. Label each OH, Br, andCH3group as axial or equatorial.

b. Classify each conformation as cis or trans.

c. Translate each structure into a representation with a hexagon for the six-membered ring, and wedges and dashed wedges for groups above and below the ring.

d. Draw the second possible chair conformation for each compound.
See all solutions

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