Alkanes

What is the general formula for alkanes?

• CnHn

• CnH2n+2

• CnH2n-2

• CnH2n

Name the second member in the alkane series.

• Methane

• Propane

• Ethane

• Butane

What is the physical state of methane at room temperature?

• Gaseous

• Plasma

• Solid

• Liquid

In general, do alkanes have high or low boiling points?

• extreme

• low

• high

• medium

What type of reaction do alkanes undergo with halogens?

• Oxidation reaction

• Elimination reaction

• Substitution reaction

• Addition reaction

What are the products of the complete combustion of alkanes?

• Hydrogen and nitrogen

• Methane and oxygen

• Carbon dioxide and water

• Carbon monoxide and sulfur

In alkane substitution reactions, what type of atoms can replace hydrogen atoms?

• chlorine

• carbon

• nitrogen

• oxygen

What is the major product of the substitution reaction between methane and chlorine?

• Chloromethane (CH3Cl)

• Chloroform (CHCl3)

• Chlorobenzene (C6H5Cl)

• Dichloromethane (CH2Cl2)

How do the boiling points of alkanes change as the number of carbon atoms in the chain increases?

• Boiling points of alkanes fluctuate randomly as the number of carbon atoms in the chain increases.

• Boiling points of alkanes decrease as the number of carbon atoms in the chain increases.

• Boiling points of alkanes increase as the number of carbon atoms in the chain increases.

• Boiling points of alkanes remain constant regardless of the number of carbon atoms in the chain.

What is the molecular formula of propane?

• C₂H₆

• C₃H₆

• C₃H₈

• C₃H₁₀