Pure concentrated $HNO_3$ makes iron passive as the surface is covered with a protective layer of:
- A$Fe_2O_3$
- B$FeO$
- C$Fe_3O_4$
- D$Fe(NO_3)_3$
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The acidic character of the group-$15$ elements' oxides in increasing order is:
In which of the following acids,$P-P$ bond is present?
Which acid is formed by $P_2O_3$?
Easy
View SolutionWhich of the following statements is true?
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