Chem V21 - Organic and Biochemistry » Fall 2021 » Introduction to Organic Compounds Prelab Quiz

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Question #1
Lab Safety: Before obtaining any chemicals, carefully ___________ the label on reagent bottle.
A.   remove
B.   read
Question #2
An unknown colorless compound shows no reaction with bromine, and still remained red after light exposure. Based on the known reactions of hydrocarbons performed in this experiment, the unknown is likely an ______.
A.   alkane
B.   aromatic
C.   alkyne
D.   alkene
Question #3
All hydrocarbons have similar physical properties. Choose all of the properties below that hydrocarbons have.
A.   soluble in water
B.   polar
C.   non-polar
D.   low boiling point
E.   high melting point
Question #4
Organic molecules contain carbon and hydrogen, and may contain
A.   nitrogen
B.   sodium
C.   copper and sodium
D.   nitrogen, sulfur, oxygen, and phosphorous
E.   oxygen
Question #5
The first step to naming hydrocarbons is
A.   Locate the simpliest carbon chain. 
B.   Locate the longest continuous (or straight) carbon chain. 
Question #6
An alkene is reacted with potassium permanganate (KMnO4). Potassium permanganate is purple and the alkene is colorless before the reaction. What color do you expect the product to be?
A.   red
B.   brown
C.   purple, no reaction occurs
D.   blue

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