SiO44- is the ________ ion.
A) orthosilicate ion
B) silicide ion
C) thiosilicate ion
D) silicon tetroxide ion
E) siliconate ion
Correct Answer:
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Q112: Glass is _ whereas quartz is _.
A)hard,
Q113: The most common oxidation state of silicon
Q114: Which group 3A element is a metalloid?
A)B
B)Al
C)Ga
D)In
E)Tl
Q115: What is the formula of borax?
A)H3BO3
B)H2B4O7
C)P5O8
D)B2O3
E)Na2B4O7 ∙
Q116: The disilicate ion is _.
A)Si2O88-
B)Si2O76-
C)Si2O84-
D)Si2O86-
E)Si2O72-
Q118: Tetraboric acid,H2B4O7,is prepared by heating boric acid,H3BO3
Q119: Boric oxide is _.
A)B2O
B)BO2
C)BO
D)B2O3
E)B2O4
Q120: The correct name of H2CO3 is _.
A)hydrogen
Q121: Which one of the following compounds is
Q122: The oxidation state of oxygen in O2F2
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