A) alcohol
B) water
C) kerosene
D) liquid ammonia
Correct Answer: C
Solution :
Alkali metals are highly reactive metals. They react with (a) Alcohol-\[2{{C}_{2}}{{H}_{5}}OH+2K\to 2{{C}_{2}}{{H}_{5}}OK+{{H}_{2}}\] (b)Water - \[2K+2{{H}_{2}}O\to 2KOH+{{H}_{2}}\] Ammonia: (d)\[K+(x+y)N{{H}_{3}}\to \underset{\begin{smallmatrix} \text{ammoniated} \\ \,\,\,\,\,\,\,\,\text{cation} \end{smallmatrix}}{\mathop{{{[K\,{{(N{{H}_{3}})}_{x}}]}^{+}}}}\,+\underset{\begin{smallmatrix} \text{ammoniated} \\ \,\,\,\,\,\text{electron} \end{smallmatrix}}{\mathop{{{[e\,{{(N{{H}_{3}})}_{y}}]}^{-}}}}\,\] But they do not react with kerosene.
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