1. Colegio San Patricio
Name _________________________________________________ Date _________
1.- The pH scales measures:
a) concentration of acids c) concentration of H ions
b) concentration of OH ions d) concentration of salt
2.- Which of the following is a salt:
a) H2O b) HCl c) KOH d) KCl
3.- In a base:
a) the OH < H b) the OH = H
c) the OH > H d) none
4.- On a pH scale, a pH = 1.5 would be
a) acidic b) very basic c) basic d) neutral
5.- Of the following solutions, select the one that is more acidic:
a) milk pH = 6.5 b) tomato pH = 4 c) bleach pH = 11 d) coffee pH = 5
6.- In the process of neutralization, an acid and a base react to form:
a) water only b) salt and CO2 c) water and CO2 d) salt and H2O
7.- In the following reaction ____ + ____  H2O + NaF, what are the reactants
a) KOH + HF b) NaOH + HCl c) NaOH + HF d) KOH + HI
8.- Which of the following reactions represent a neutralization?
a) BaCl2 + CaSO4  BaSO4 + CaCl2 b) HCl + NaF  NaCl + HF
c) Ca(OH)2 + H2SO4  H2O + CaSO4 d) Na + H2O  NaOH + H2
9.- Which of the following is not a pH indicador:
a) phenolphthalein b) litmus c) red cabbage juice d) Maalox
10.- What is the color of the indicator litmus in a solution that has a pH = 5 ?
a) colorless b) red c) blue d) pink
11.- The following are true about antacids except
a) are bases or basic salts b) increase acidity of stomach
b) neutralize stomach acid d) all are true