K to Fe displace H2 with steam without decreasing reactivity or with decreasing reactivity?
Answers
Answer:
yes it is true
Explanation:
hope it helps you
Answer:
An activity series (also known as a reactivity series) is a chart of metals organized by reaction occurrences, beginning with the most powerful reactants and ending with the least powerful reactants.
Explanation:
K to Fe displace H2 with steam with decreasing reactivity. This is so because potassium displaces H₂ very violently but Fe displaces H₂ very slowly.
Single-replacement reactions occur only when the replacing element is more reactive than the element being replaced.
If the replacing element is less reactive than the element being replaced, then the single replacement reaction does not occur.
In the activity series, the elements present between potassium to iron are potassium, barium, calcium, sodium, magnesium, aluminum, manganese, chromium, and iron. These all elements lie about the H₂. Hence they are more reactive than H₂.
But as we move from potassium to iron, their reactivity decreases.
Hence, K to Fe displaces H₂ with steam with decreasing reactivity.
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