JEE Main 202228 JuneMorning Shift
- Exam
- JEE Main
- Year
- 2022
- Date
- 28 June
- Shift
- Morning Shift
- Subject
- Chemistry
- Chapter
- p Block Elements (Group 15, 16, 17 & 18)
JEE Main 2022 · 28 June · Morning Shift · Chemistry · p Block Elements (Group 15, 16, 17 & 18)
Given below are two statements : Statement I: The pentavalent oxide...
Given below are two statements :
Statement I: The pentavalent oxide of group- element, , is less acidic than trivalent oxide, , of the same element.
Statement II : The acidic character of trivalent oxide of group elements, , decreases down the group.
In light of the above statements, choose most appropriate answer from the options given below
Options
- ABoth Statement I and Statement II are true.
- BBoth Statement I and Statement II are false.
- CStatement I is false but statement II is true.
- DStatement I true, but statement II is false.
Correct answer
C. Statement I is false but statement II is true.
Step-by-step solution
Reactivity towards oxygen: All froup 15 elements from two types of oxides: and . The oxide in the higher oxidation state of the element is more acidic than that of lower oxidation state. Their acidic character decreases down the group. The oxides of the type of nitrogen and phosphorus are purely acidic, that of arsenic and antimony are amphoteric and those of bismuth predominantly basic.