Question

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solve the question with detailed ans:-

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Answer 1

Potassium, Sodium, and Calcium can liberate hydrogen from dilute H2SO4 solution. The elements which are below hydrogen in the reactivity series such as gold, silver, mercury cannot liberate hydrogen from dilute H2SO4. All the metals which are above hydrogen can be used to displace hydrogen from dil. H2SO4.

MERCURY IS THE MAJOR ELEMENT WHICH CAN LIBERATE HYDROGEN SO

option (D)

Answer 2

YOUR answer will be

Option (c) Al

Aluminum will displace hydrogen from sulphuric acid because because aluminium is more reactive then Hydrogen.

And as result of displacement reaction hydrogen will be liberated.

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