Single Answer MCQ
Q-00002053
Write the chemical equations for the reactions of iron with steam and calcium/potassium with water.
1
Fe + H2O -> FeO + H2
2
Fe + 3H2O -> Fe(OH)3 + H2
3
Ca + 2H2O -> Ca(OH)2 + H2
4
K + 2H2O -> KOH + H2
Answer and Solution
Answer
B. Fe + 3H2O -> Fe(OH)3 + H2
Solution:
The reaction of iron with steam is represented by the equation Fe + 3H2O -> Fe(OH)3 + H2. The reaction of calcium with water is represented by the equation Ca + 2H2O -> Ca(OH)2 + H2.
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