11) Which of the following compounds is an Arrhenius base?
A) C6H12O6
B) HOCl
C) H2SO4
D) C6H5NH2
12) Which of the following compounds is an Arrhenius base?
A) CH3OH
B) CH3CO2H
C) HOCl
D) CsOH
13) Which one of the following compounds behaves as an acid when dissolved in water?
A) RaO
B) C4H10
C) H I
D) RbOH
14) Which of the compounds of H2C2O4, Ca(OH)2, KOH, and H I, behave as acids when they are dissolved in water?
A) Ca(OH)2 and KOH
B) H2C2O4 and HI
C) only H I
D) only KOH
15) Which of the compounds H2C2O4, Ca(OH)2, KOH, and HI, behave as bases when they are dissolved in water?
A) Ca(OH)2 and KOH
B) H2C2O4 and H I
C) only H I
D) only KOH
16) When dissolved in water, KOH behaves as
A) an acid that forms K+ and OH– ions.
B) an acid that forms KO– and H+ ions.
C) a base that forms K+ and OH– ions.
D) a base that forms KO– and H+ ions.
17) An aqueous solution of H2S is named
A) hydrosulfuric acid.
B) hydrosulfurous acid.
C) sulfuric acid.
D) sulfurous acid.
18) The chemical formula for nitrous acid is
A) H3N(aq).
B) H NO2(aq).
C) H NO3(aq).
D) H2N2O6(aq).
19) What is the oxidation number of the sulfur atom in K2SO4 ?
A) -2
B) +2
C) +4
D) +6
20) What is the oxidation number of the chromium atom in K2Cr2O4 ?
A) -2
B) +2
C) +6
D) +7
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