Question

58. Assertion: Metals are arranged in decreasing order of reactivity in a series called reactivity series. Reason: Metals which are placed at the top are highly reactive and can replace the metals which are placed below in reactivity series. *

A. Both assertion and reason are correct and reason is the correct explanation of assertion

B. Both assertion and reason are correct but reason is not the correct explanation of assertion

C. Assertion is correct and reason is incorrect

D. Assertion is incorrect and reason is correct​

Answer 1

Answer:

b)Both assertion and reason are correct but reason is not the correct explanation of assertion

Explanation:

ncert exampler book

Answer 2

Both assertion and reason are correct but the reason is not the correct explanation of assertion. (Option C)

Some notable characteristics of the reactivity series:

• Because they are quickly oxidized, the metals near the top of the reactivity series are potent reducing agents. These metals discolor and corrode quickly.

• The metals' reducing capacity weakens as they progress down the series.

• The electro positivity of the elements decreases as one moves down the metal reactivity series.

• When interacting with dilute HCl or dilute H2SO4, all metals located above hydrogen in the activity series liberate H2 gas.

• Metals higher on the reactivity series can displace metals lower on the reactivity series from their salt solutions.

• Higher-ranking metals need more energy for separation from ores and other compounds.