Question

14. Assertion Different metals have different reactivities with water and dilute acids.
Reason Reactivity of a metal depends on its position in the reactivity series.​

Answer 1

Answer:

Different metals have different reactivity with various mineral acids as the metals on top of the series react easily with acids while metals present at the bottom are unreactive to acids or water e.g. noble metals.

Answer 2

Both Assertion and Reason are true and Reason is correct explaination of assertion.

• A reactivity series is used to determine the reactivity of a particular metal with water and dilute acids. Usually metals are arranged in ascending order from top to bottom. The top position is occupied by the most active metal while the bottom position by least active metal.
• Metals on top are not just active but also powerful reducing agents.
• The metals that lie on top have the ability to displace the one with low reactivity. For example:- Aluminium can displace Copper in a particular reaction due to difference in their reactivity.
• Hence, both Assertion and Reason are true and Reason is correct explaination of assertion.