# With Reference to Acid Explain with a Suitable Example of How the Reactivity of the Metals Could Be Differentiated. - Chemistry

Short Note

With reference to Acid explain with a suitable example of how the reactivity of the metals could be differentiated.

#### Solution

Action of metals with acids: As reactivity decreases from top to bottom in metal activity series.
K and Na react with dil. HC1 and dil. H2SO4 explosively to produce H2
$\ce{2Na + 2HCl->2NaCl + H2}$
Ca, Mg, Al, Zn, and iron react less vigorously with decreasing vigour with dil. H2SO4 or dil. HC1 to produce H2
$\ce{Ca + H2SO->CaSO4 + H2}$
Metals below hydrogen do not react with dil. acid and do not displace H2 from it.

Concept: Reactivity Series - Metal that Displaces the Metal Ion from the Solution is More Reactive.
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#### APPEARS IN

Viraf J. Dalal Class 8 New Simplified Middle School Chemistry
Chapter 6 Chemical Reactions
Exercise | Q 6.2