Mn2O3 is
A) manganese (III) oxide.
B) manganese (II) oxide.
C) manganese oxide (II) .
D) manganese oxide (III) .
Correct Answer:
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Q46: Which is ferric oxide?
A)FeO
B)Fe2O
C)FeO2
D)Fe2O3
Q47: Hydrobromic acid is
A)HBr
B)H2Br
C)HBr2
D)H3Br
Q48: Arsenic pentachloride is
A)AsCl5
B)As5Cl
C)As2Cl5
D)AsCl
Q49: Which is plumbous chloride?
A)PbCl
B)PbCl2
C)PbCl3
D)PbCl4
Q50: What is the formula for the compound
Q52: What is the formula for the compound
Q53: Which is phosphorous pentachloride?
A)PCl5
B)P5Cl
C)P2Cl5
D)P5Cl2
Q54: HNO3 is
A)hydronitric acid.
B)nitric acid.
C)hydronitrous acid.
D)nitrous acid.
Q55: H2S is
A)sulfuric acid.
B)sulfurous acid.
C)sydrosulfuric acid.
D)sydrosulfurous acid.
Q56: Which is dinitrogen monoxide?
A)N2O
B)NO2
C)NO
D)N2O4
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