1. Colegio San Patricio
Name _________________________________________________ Date _________
1.- Which of the following statements is true concerning acids?
a) Are proton acceptors c) turn litmus to blue
b) Release hydroxide ions d) feel slippery
2.- Which of the following statements is true concerning bases?
a) Release hydrogen ions c) turn litmus to red
b) React with metals d) are caustic
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 basic: coffeer pH = 5, tomato juice
pH = 4, milk pH=6.5, bleach pH = 11.5
a) milk b) tomato c) bleach d) coffee
6.- A weak acid:
a) does not dissolve in water
b) ionizes slightly in water to give a few ions
c) ionizes 100% in water
d) all are correct
7.- When an acid neutralizes a base:
a) a salt is produced b) water is produced
c) H=OH d) all of the above
8.- The following are strong acids except:
a) HCl b) NaOH c) H2SO4 d) HNO3
9.- What is the color of litmus indicator in a solution with pH = 9 ?
a) red b) pink c) colorless d) blue
10.- What is the color of phenolphthalein in a solution with pH = 11?
a) red b) pink c) colorless d) blue