Question

Which gas is produced when dilute hydrochloric acid is added to a reactive metal ?

wrote the chemical reaction when irons reacts with dilute H2SO4.

Answer 1

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Answer 2

Caesium, the most reactive metal in the periodic table, reacts extremely violently – hence why it can't be demonstrated in a classroom! This can be compared to other common metals, such as iron and copper, which produce no reaction when dropped into water.