The most common oxidation state of silicon is ________.
A) -4
B) +2
C) +6
D) -2
E) +4
Correct Answer:
Verified
Q108: _ is formed when wood is heated
Q109: What is the oxidation state of carbon
Q110: The correct name for NaBH4 is _.
A)sodium
Q111: Diborane is _.
A)B10H14
B)B2O3
C)BH3
D)B2H6
E)H3BO3
Q112: Glass is _ whereas quartz is _.
A)hard,
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-
Q117: SiO44- is the _ ion.
A)orthosilicate ion
B)silicide ion
C)thiosilicate
Q118: Tetraboric acid,H2B4O7,is prepared by heating boric acid,H3BO3
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