Name two metal which will displace hydrogen from dilute acid and two metal which will not

To understand the metals that can displace hydrogen from dilute acids, and the metals that cannot, we have to compare the reactivities of the respective metals to that of hydrogen using the reacitvity series. • The metals that are present above hydrogen displace it from an acid. For example: Iron, zinc • The metals that are present below hydrogen cannot displace it from an acid. For example: Copper, silver

Hint: We know that a reaction where displacement of a less reactive metal from its compound occurs by a more reactive metal is termed as displacement reaction. The reactivity of metals is decided by the reactivity series of metals. Complete step-by step answer: Now, we discuss the condition in which displacement of hydrogen from dilute acids takes place. From dilute acids like hydrochloric acid or sulphuric acid, hydrogen is replaced by metals which are more reactive than hydrogen. The reactivity series of metals is given as follows: Let’s find the correct option. Option A contains $$ Note: Highly reactive metal like potassium, sodium and calcium displaces hydrogen from dilute acids with explosive violence, moderately reactive metals like magnesium, aluminium and zinc displaces hydrogen vigorously and metals such as copper, gold, mercury and silver do not displaces hydrogen from dilute acids.