ALKANES

(Remembering) What is the chemical formula for methane, a common alkane?

• CH3CH3
• C2H6
• CH4
• C3H8

Which of the following is NOT a property of the binomial theorem for a rational index?

• The sum of the coefficients is equal to the exponent
• The coefficient of the middle term is equal to the product of the other coefficients
• The coefficient of each term is a binomial coefficient
• The exponent of each term is equal to the sum of the exponents of the other terms

Which of the following is NOT a property of the summation of the binomial series?

• The sum of the coefficients is equal to the exponent
• The coefficient of the middle term is equal to the product of the other coefficients
• The coefficient of each term is a binomial coefficient
• The exponent of each term is equal to the sum of the exponents of the other terms

(Remembering) What is the chemical formula for methane, a common alkane?

• CH3CH3
• C2H6
• CH4
• C3H8

(Understanding) Which of the following statements about the physical properties of alkanes is NOT true?

• Alkanes are nonpolar
• Alkanes are hydrophobic
• Alkanes are less dense than water
• Alkanes are less reactive than alkenes

(Applying) Which process is used to convert long-chain alkanes into shorter-chain alkanes in a refinery?

• Cracking
• Hydrocracking
• Dehydration
• Hydrogenation

(Analyzing) How does the presence of C=C double bonds affect the reactivity of an alkane?

• It makes the alkane more reactive
• It makes the alkane less reactive
• It has no effect on the reactivity of the alkane
• It depends on the number of C=C double bonds present

(Evaluating) Which of the following statements about the environmental impact of burning alkanes is NOT true?

• Burning alkanes releases carbon dioxide into the atmosphere
• Carbon dioxide emissions from burning alkanes contribute to climate change
• Renewable energy sources are a more environmentally friendly alternative to burning alkanes
• The use of alkanes as feedstocks or fuel has no environmental impact

(Creating) How could a chemist modify the physical properties of an alkane by altering its molecular structure?

• Adding C=C double bonds
• Removing C-C bonds
• Adding functional groups
• Decreasing the number of carbon atoms