Answer Happy

Part I. Multiple Choice (12 pts) 1. The alkenes represent one family of organic compounds a. in which halogens are a major component. b. in which there is at least one double bond between carbons. c. that is composed of carbons singly bonded to other carbon and hydrogen. d. in which hydrogens can be bonded to other hydrogens. 2. Which of the following cycloalkanes contains a total of 12 carbon atoms? a. 1-ethyl-2-methylcyclononane b. 1-isopropyl-2-methylcycloheptane c. 1-methyl-2-ethylcycloheptane d. methylcyclodecane 3. Which of the following statements is false? Cyclobutane has 109.5- bond angles like all alkanes. b. There are five isomers of CH₂. a. cis- and trans- isomers are possible for 3-methyl-2-pentene. d. All statements are true. c. 4. Which of the following is not a valid IUPAC name of an alkane? a. 2,3,4-trimethylhexane 1-butyl-2-ethylcyclopentane b. c. 1-ethyl-2-butylpentane d. 5-butyl-2-methylnonane 5. Identify a difference between alkynes and alkenes. a. Alkenes are insoluble in water, whereas alkynes are soluble in water. b. Alkenes have higher melting and boiling points than alkynes. C. Alkenes are less dense than water, whereas alkynes are denser than water. e. Alkynes can consume twice as many moles of addition reagent (e.g. H.) than alkenes.