Question

sulphur can displaced hydrogen from acid?​

Answer 1

Answer:

Only those metals which are more reactive than hydrogen, displace hydrogen from acids to form salts and evolve hydrogen gas. Out of the given elements, only Na is a metal which is more reactive than hydrogen

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Answer 2

Answer:

In the reactivity series, the metals that come above hydrogen have the ability to displace hydrogen as they are more reactive than it, For eg. Calcium (Ca) and on the other hand the metals that come below hydrogen in the reactivity series for eg. Copper(Cu), Silver(Ag), Gold(Au) are less reactive than hydrogen and hence they cannot displace hydrogen.

Only those metals which are more reactive than hydrogen, displace hydrogen from acids to form salts and evolve hydrogen gas. Out of the given elements, only Na is a metal which is more reactive than hydrogen.

In nature, Oxidation occurs more than reduction. carbon, Sulfur, Nitrogen etc. gas converted to their oxides. This is oxidation. But, we never heard that their oxides converting to elements. So, reduction is less.