Question

when cu react with dilute acid it does not liberate the h2 gas why​

Answer 1

Answer:

Explanation:

Elements lying above in the series are more reactive than the elements lying below in the series. As copper lies below hydrogen in the series, it cannot displace hydrogen when reacting with dilute HCl. cannot take place as copper is less reactive than hydrogen.

Answer 2

Answer:

Copper does not reacts with dilute sulphuric acid, liberating hydrogen because copper is lower in the electromotive series than hydrogen. A more reactive element can displace a less reactive element from its salt solution.

Explanation:

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