North Carolina Science Grade 8

Chapter 14: Carbon Chemistry

Standardized Test Practice

1.
What is the name of the substituted hydrocarbon with the chemical formula CHCl3?
A)trichlorobutane
B)trichloroethane
C)trichlorononane
D)trichloromethane
2.
What is the name of the compound in the illustration?

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A)ethane
B)methane
C)methanol
D)ethanol
3.
What is the –OH group on the compound called?

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A)hydroxyl
B)amino
C)carboxyl
D)methyl
4.
What is the general formula for the family containing the compound propene (C3H6), pentene (C5H10),and butene (C4H8)?
A)C2nHn
B)CnH2n
C)CnH2n+2
D)CnH2n-2
5.
Based on its root name and suffix, what is the structural formula of butyne?
A)H2C=CH-CH3
B)HCℜC-CH2-CH3
C)H2C=CH-CH2-CH3
D)HCℜC-CH3
6.
If the formula for sucrose is given as CxHyOz, what are the values of x, y, and z?

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A)10, 12, 10
B)10, 20, 10
C)12, 22, 12
D)12, 22, 11
7.
When a –COOH group replaces a hydrogen atom in a hydrocarbon, which type of compound is formed?
A)carboxylic acid
B)amino acid
C)alcohol
D)amine
8.
What is the structural formula for a hydroxyl group?
A)–CH3
B)–NH2
C)–NH3
D)–OH
9.
Which term is defined as a polymer of glucose monomers?
A)starch
B)carbohydrate
C)lipid
D)protein
10.
What is the formula for dichloromethane?
A)CH3Cl2
B)CH2Cl3
C)CH3Cl3
D)CH2Cl2
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