Worksheets3.2 Periodicity (Acid-Base Character)
Total questions: 6
Worksheet time: 3mins
Name
Class
Date
1.
What is the characteristic of Al2O3?
a)
Acidic oxide
b)
Basic Oxide
c)
Amphoteric
2.
Which react with water to form acidic solutions?
I. Sodium oxide, Na2O
II. Phosphorus pentoxide, P4O10
III. Sulfur trioxide, SO3
a)
I and II
b)
I and III
c)
II and III
d)
I, II and III
3.
Which of the following compound is NOT basic?
a)
Na2O
b)
MgO
c)
SO2
4.
The compounds Na2O, Al2O3 and SO2 respectively are
a)
acidic, amphoteric and basic.
b)
amphoteric, basic and acidic
c)
basic, acidic and amphoteric
d)
basic, amphoteric and acidic
5.
Which compound of an element in period 3 reacts with water to form a solution with a pH greater than 7?
a)
SiO2
b)
SiCl4
c)
NaCl
d)
Na2O
6.
Which oxides produce an acidic solution when added to water?
I. SiO2
II. P4O10
III. SO2
a)
I and II only
b)
I and III only
c)
II and III only
d)
I, II and III
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