Practice Hydrocarbon in Chemistry
Use these practice problems to test your method after reviewing the concept explanation and worked examples.
Quick Recap
A hydrocarbon is an organic compound made only of carbon and hydrogen atoms. Common hydrocarbon families include alkanes, alkenes, and alkynes.
Hydrocarbons are the simplest organic molecules: just carbon plus hydrogen.
Showing a random 20 of 50 problems.
Example 1
challengeBurning 1 mol of butane gives how many moles of water? ()
Example 2
mediumA hydrocarbon with carbons has hydrogens. Identify its family.
Example 3
easyIs ethanoic acid () a hydrocarbon?
Example 4
easyAre all carbon-containing molecules hydrocarbons?
Example 5
mediumWhat is the molecular formula of the alkane with carbons (decane)?
Example 6
easyIs saturated or unsaturated?
Example 7
mediumA hydrocarbon has formula . Identify its family and saturation state.
Example 8
mediumCompare the hydrogen counts of the 6-carbon alkane, alkene, and alkyne.
Example 9
mediumCompare the hydrogen counts of the 5-carbon alkane, alkene, and alkyne.
Example 10
mediumDetermine the molecular formula of the alkene with 4 carbons (butene).
Example 11
easyEthyne (acetylene) has a carbon-carbon triple bond. What family is it in?
Example 12
hardWrite the balanced complete combustion equation for octane ().
Example 13
easyDetermine the formula of the alkene with carbons (propene).
Example 14
mediumWhich has more hydrogens: a 6-carbon alkane or a 6-carbon alkene? By how many?
Example 15
challengeAn unsaturated hydrocarbon has formula . State its family and how many degrees of unsaturation it has relative to the alkane.
Example 16
hardPredict the products of catalytic cracking of decane () producing one alkane and one alkene, both with carbons.
Example 17
hardCyclohexane has formula , the same as hex-1-ene. Why doesn't the formula match the alkane formula?
Example 18
hardA hydrocarbon has carbon by mass. Calculate its empirical formula. (, )
Example 19
mediumA student says ethanol () is a hydrocarbon. Is this correct?
Example 20
hardHex-1-yne () reacts with excess over a catalyst. What product forms and what is its family?