3.
下列各组物质中,不是按\(\rm{(}\)“\(\rm{―→}\)”表示一步完成\(\rm{)}\)关系相互转化的是:
选项 | \(\rm{a}\) | \(\rm{b}\) | \(\rm{c}\) |
\(\rm{A}\) | \(\rm{Fe}\) | \(\rm{FeCl_{3}}\) | \(\rm{FeCl_{2}}\) |
\(\rm{B}\) | \(\rm{Cl_{2}}\) | \(\rm{NaClO}\) | \(\rm{NaCl}\) |
\(\rm{C}\) | \(\rm{Si}\) | \(\rm{SiO_{2}}\) | \(\rm{H_{2}SiO_{3}}\) |
\(\rm{D}\) | \(\rm{HNO_{3}}\) | \(\rm{NO}\) | \(\rm{NO_{2}}\) |