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15. Most well-known for its presence at parties, this functional group consists of OH bonded to a R group.
a. alcohol b. aldehyde
e. carboxylic acid d. ester
16. Alkanes are hydrocarbons, as they only contain the elements hydrogen and carbon. What is the name of simplest alkane?
a butane b. ethane
cp methane
d. propane
17. Which of the following alkenes doesn't exist?
a. butene b. methene
. pentene d. octene
18. Aldehydes are often use for fragrances and flavors. Which of
the following is the functional group of it?
a. ROH b. ROR
C. ECHO d. RCOR
19. Cigarette smoking is dangerous to one's health. Which of the following is the harmful carbon compound found in cigarettes?
a. caffeine b. morphine
c. nicotine
d. thiamine
20. Testosterone and progesterone are hormones essential to human beings. In what class do these sex hormones belong?
a. Alkynes
b. Esters
c. Carboxylic acids
d. Ketone
21. The following are representative particles of matter. Which
among them represents the covalent bond?
a. atom b. font
c. molecule d. particle unit
22. How can knowledge about mole be useful for environmentalists? a. Mole concept can be used in environmental monitoring.
b. It gives information on the most dangerous pollutant in the c. It gives a feedback on the kinds of pollutants present in
atmosphere.
the atmosphere.
d. Mole concept can be used in quantifying the amount of
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