Question

Metal X does not give hydrogen gas when allowed to react with cold or hot water but it reacts with steam to form metal oxide and hydrogen gas. Metal X cannot be ​

Answer 1

Answer:

zinc

Explanation:

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Answer 2

The metal X can be Aluminium , Zinc or Iron.

• These metal has very low reactivity with cold or hot water.

• Hence , it shows insignificant reaction with cold or hot water and doesn't produce Hydrogen gas.

• However , they does react with steam to produce metal oxides (of various types) and hydrogen gas.

The respective chemical equations:

$Zn + H_{2}O(g)\rightarrow ZnO + H_{2}$

$Fe + H_{2}O(g)\rightarrow Fe_{3}O_{4}+H_{2}$

$Al + H_{2}O(g)\rightarrow Al_{2}O_{3}+H_{2}$