Unit 10: Chapter 11.9 [CMY 151] Practice Exam Questions And Accurate Answers.
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Grado
CMY
Institución
CMY
what is the most important physical property of alkanes and cycloalkanes? (1) - correct answer complete lack of polarity
how is a C-H bond classified? (1) - correct answer non polar covalent
how does boiling and melting...
what is the most important physical property of alkanes and cycloalkanes? (1) - correct answer
complete lack of polarity
how is a C-H bond classified? (1) - correct answer non polar covalent
how does boiling and melting point change with alkanes? (1) - correct answer
increasing molecular weight = increasing melting and boiling point
which alkanes are gases at room temperature? (1) - correct answer those with 1-4
carbons
which alkanes are colourless liquids at room temperature? (1) - correct answer
those with 5-17 carbons
which alkanes are white, waxy solids at room temperature? (1) - correct answer
those with more than 18 carbons
what is the relationship between branching and boiling point? (1) - correct answer
inverse
how is branching inversely proportional to boiling point? (6) - correct answer
increased branching = compact molecule = decreased surface area = london dispersion forces over small
area = decreased molecular attraction = boiling point decrease
why are alkanes not soluble in water? (1) - correct answer they are non polar
compounds that cannot form hydrogen bonds with water
what are alkanes soluble in? (1) - correct answer non polar organic compounds =
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