Question

A metal less reactive and another metal more reactive than hydrogen are ______.

विकल्प

• aluminium and lead

• iron and magnesium

• copper and tin

• copper and mercury

Answer 1

A metal less reactive and another metal more reactive than hydrogen are copper and tin.

Explanation:

According to the reactivity series, copper lies below hydrogen, meaning it is less reactive and cannot displace hydrogen from water or acids. Conversely, tin lies above hydrogen in the reactivity series, making it more reactive and capable of displacing hydrogen. In the other options, the metals are either both more reactive (aluminium, lead, iron, magnesium) or both less reactive (copper, mercury) than hydrogen.