Given below two statements |p-Block Elements| JEE-Main 2022

JEE MAIN 2022

28-06-2022 S1

Question

Given below are two statements :
Statement -I :The pentavalent oxide of group- 15 element. $\mathrm{E}_2 \mathrm{O}_5$.. is less acidic than trivalent oxide. $\mathrm{E}_2 \mathrm{O}_3$. of the same element.
Statement -II :The acidic character of trivalent oxide of group 15 elements. $\mathrm{E}_2 \mathrm{O}_3$. decreases down the group.
In light of the above statements. choose most appropriate answer from the options given below:

Select the correct option:

Both Statement I and Statement II are true.

Both Statement I and Statement II are false.

Statement I true. but statement II is false.

Statement I is false but statement II is true

✓ Correct! Well done.

✗ Incorrect. Try again or view the solution.

Solution

As +ve oxidation state increases, EN of element increases hence acidic character increases. Down the group, non-metallic character decreases, acidic character decreases. Acidic character : $\mathrm{E}_2 \mathrm{O}_5>\mathrm{E}_2 \mathrm{O}_3$ Down the group, acidic character of $\mathrm{E}_2 \mathrm{O}_3$ decreases

Question Tags

JEE Main

Chemistry

Medium

Start Preparing for JEE with Competishun

Report Issue