Exercise List 3. Química I y Laboratorio. Universidad ECCI.
Name___________________________________
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
1) Which compound contains only covalent bonds?
A) NH4OH
C) NO2
2) The oxidation number of Cl in ClO2- is
A) +5.
B) -1.
3) The oxidation number of I in IO- is
A) +1.
B) 0.
1)
B) NaCl
D) Ca3(PO4 )2
2)
C) +3.
D) +4.
E) +7.
C) +3.
D) -1.
E) +2.
D) copper (I)
E) copper (II)
4) Name the cuprous ion according to the Stock system.
A) copper +3
B) cuprum
C) Cu (I)
3)
4)
5) Name the Pb2+ ion according to the Stock system.
A) plumbous
B) leadous
C) lead (II)
D) plumbic
E) plumbous (II)
5)
6) The correct name for the SCN- ion is
A) sulfocyanide.
B) cyanosulfide.
C) thiocyanate.
D) thiocyanide.
E) sulfanide.
6)
7) What is the correct formula for mercurous chloride?
A) MeCl2
B) Me2 Cl
C) HgCl
D) HgCl2
E) Hg2 Cl2
7)
8) What is the name of the compound SF6 ?
8)
9) The correct name for P3 N5 is
9)
A)
B)
C)
D)
E)
A)
B)
C)
D)
E)
sulfur hexaflouride
sulfur sexafluoride
monosulfur hexafluoride
sulfur hexafluoride
monosulfur hexafluorate
triphosphorus pentanitride.
tri-phosphoro pentanitrogen.
triphosphorus (V) nitiride.
phosphonitridic acid.
nitrogenophospholidic anhydride.
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10) What is the name of the compound N2 O5 ?
A)
B)
C)
D)
E)
10)
dinitro (V) oxide
dinitride pentoxide
dinitrogen pentaoxide
dinitrate
dinitrogen pentoxide
11) What is the correct formula for iron (III) oxide?
A) FeO3
B) Fe2 O3
C) Ir2 O3
D) Fe3 O2
E) FeO
11)
12) Write the formula for the compound named stannous fluoride (found in toothpaste).
A) SnF
B) SnF4
C) Sn2 F
D) SnF2
E) StF2
12)
13) The correct set of names (in order) for OCN- , MnO4- , and C2 H3 O2 - is
13)
14) Which of the following pairs has an error in the formula or in the chemical name?
A) Cl2 O7 dichlorine heptoxide
B) CCl4 carbon tetrachloride
14)
15) What is the chemical name of Pb3 (PO4)4 ?
15)
A)
B)
C)
D)
E)
cyanide, permanganate, acetate.
cyanate, permanganate, acetate.
cyanide, permanganate, oxalate.
cyanate, manganate, acetocarboxylate.
carbonitride, mangante, oxalate.
C) Mn(ClO4 )2
manganese (II) perchlorate
D) AuF3
A) lead (IV) phosphate
C) lead phosphate
gold fluoride
B) lead (III) phosphate
D) lead triphosphide
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