NYGH - Organic Chemistry (Intro)

What is the main component of organic compounds?

• carbon

• nitrogen

• oxygen

• sulfur

Which of the following substances are organic?

• graphite

• ethanol

• magnesium

• carbon monoxide

Which of the following is a hydrocarbon?

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Which of the following substances are saturated?

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A __________ _____ is an atom or group of atoms that gives a molecule its characteristic chemical properties.

A __________ ______ is a set of organic compounds in which each member differs from the next member by a constant amount.

Which of the following is true about all members of the same homologous series?

• They have the same chemical formula.

• They have similar physical properties.

• They have similar chemical properties.

• Each member differs from the next member in molecular formula by a carbon atom.

(Enrichment) In the diagram above, the top structure shows the skeletal formula of hexane and the bottom shows the structural formula of hexane. What is the skeletal formula of octane?

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Which of the following structural isomers of hexane are actually the same isomer? (Select 2)

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As the molar mass of a hydrocarbon increases, its melting and boiling point _______________.

• increases

• decreases

• remains the same

• cannot be determined