18 Breaking of a larger hydrocarbon molecule into a smaller one by heating in the presence of a catalyst is called ___.
a. Cracking
b. Orthofugation
c. Centrifugation
d. Thermogenation
19 An isomer of pentane is ___________.
a. 2,2-Dimethylpropane
b. 2,2-Dimethylpentane
c. 1,1-Dimethylcyclopropane
d. 2,3-Dimethylbutane
20 Isomers have the same _____________.
a. Melting point
b. Molecular formula
c. Boiling point
d. Reactivity
1
Expert's answer
2016-09-30T08:55:03-0400
18. a. Cracking 19. a. 2,2-Dimethylpropane 20. b. Molecular formula
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