Phản ứng nào sau đây không đúng?
A. $\displaystyle \text{2Cr + 3}{{\text{F}}_{\text{2}}}\text{ }\!\!~\!\!\text{ }\xrightarrow{{}}\text{ }\!\!~\!\!\text{ 2Cr}{{\text{F}}_{\text{3 }\!\!~\!\!\text{ }\!\!~\!\!\text{ }\!\!~\!\!\text{ }}}$
B. $\displaystyle \text{2Cr + 3C}{{\text{l}}_{\text{2}}}\text{ }\!\!~\!\!\text{ }\xrightarrow{{{\text{t}}^{\text{o}}}}\text{ }\!\!~\!\!\text{ 2CrC}{{\text{l}}_{\text{3 }\!\!~\!\!\text{ }}}$
C. $\displaystyle \text{Cr + S }\!\!~\!\!\text{ }\xrightarrow{{{\text{t}}^{\text{o}}}}\text{ }\!\!~\!\!\text{ CrS}$
D. $\displaystyle \text{2Cr + }{{\text{N}}_{\text{2 }\!\!~\!\!\text{ }}}\text{ }\!\!~\!\!\text{ }\xrightarrow{{{\text{t}}^{\text{o}}}}\text{2CrN}$
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Hóa Học lớp 12
