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Straighterline Chemistry Final Exam |Questions with 100% Correct Answers
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Straighterline Chemistry Final Exam|Questions with 100% Correct Answers
In which type of isomerism is there restricted rotation around a bond?
Select one:
a. Stereoisomers
b. Geometrical isomers
c. Constitutional isomers
d. Conformational isomers
e. Connectivity isomers - ✔️✔️b. Geometrical isomers
What name is given to a compound containing a -CONH2 group?
Select one:
a. Aldehyde
b. Amine
c. Amide
d. Carboxylic acid
e. Ester - ✔️✔️c. Amide
Bromination of benzene (C6H6), an aromatic compound,
Select one:
a. occurs by substitution rather than addition.
b. occurs by addition rather than substitution.
c. occurs more rapidly than bromination of a nonaromatic compound.
d. results in the formation of 1,2,3,4,5,6-hexabromocyclohexane.
,e. occurs in the absence of a catalyst. - ✔️✔️a. occurs by substitution rather than
addition.
Which one of these materials is a copolymer?
Select one:
a. Polystyrene-polybutadiene
b. Polyvinyl chloride
c. Polypropylene
d. Poly-cis-isoprene
e. Polyethylene - ✔️✔️a. Polystyrene-polybutadiene
The density of a substance is an intensive property.
Select one:
True
False - ✔️✔️True
The rusting of a piece of iron under environmental conditions is a physical change.
Select one:
True
False - ✔️✔️False
77 K is colder than 4 K.
, Select one:
True
False - ✔️✔️False
Zero kelvin 0 K < 0°F < 0°C
Select one:
True
False - ✔️✔️True
The number 6.0448, rounded to 3 decimal places, becomes 6.045.
Select one:
True
False - ✔️✔️True
A scoop of vanilla ice cream is a pure substance.
Select one:
True
False - ✔️✔️False
The juice from an orange is a mixture.
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