JEE Main 2026 Apr 5 Shift 2, Chemistry Q8: Periodicity In Atomic Properties

JEE Main2026Apr 5, Shift 2Chemistry

Given below are two statements:

Statement-I: The number of pairs among $[A l_{2} O_{3}, C r_{2} O_{3}]$ , $[C l_{2} O_{7}, M n_{2} O_{7}]$ , $[N a_{2} O, V_{2} O_{3}]$ and $[C O, N_{2} O]$ that contain oxides of same nature (acidic, basic, neutral or amphoteric) is 4.

Statement-II: Among $N a_{2} O$ , $A l_{2} O_{3}$ , $C O$ and $C l_{2} O_{7}$ , the most basic and acidic oxides are $N a_{2} O$ and $C l_{2} O_{7}$ , respectively.

In the light of the above statements, choose the correct answer from the options given below:

A
Both Statement-I and Statement-II are true.
B
Both Statement-I and Statement-II are false.
C
Statement-I is true but Statement-II is false.
D
Statement-I is false but Statement-II is true.

Solution

Statement-I: Pair-by-pair classification — $[A l_{2} O_{3}, C r_{2} O_{3}]$ both amphoteric; $[C l_{2} O_{7}, M n_{2} O_{7}]$ both acidic; $[N a_{2} O, V_{2} O_{3}]$ both basic; $[C O, N_{2} O]$ both neutral. All 4 pairs match. True.

Statement-II: $N a_{2} O$ (Group 1 alkali metal oxide) is the most basic; $C l_{2} O_{7}$ (highest oxidation state oxide of a non-metal) is the most acidic. True.

Both statements true.

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JEE Main 2026 Apr 5 Shift 2, Chemistry Q8: Periodicity In Atomic Properties

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