Which of these metals displace hydrogen from dilute acids with explosive violence?

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Solution

The correct options are
A
K

D
Na

Hydrogen is displaced from dilute hydrosulphuric acid and hydrochloric acid when it reacts with metals which are more reactive than Hydrogen. Few metals like K, Na and Ca reacts vigorously and explosively with Hydrogen.

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Non-metals displace hydrogen from dilute acids.

Which of the following metal replaces hydrogen from dilute acid with explosive violence?

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