Given below are two statements : Statement-I : The number of pairs among [ Al 2 O 3 . , . Cr 2 O 3 ], [ Cl 2 O 7 , Mn 2 O 7 ], [ Na 2 O , V 2 O 3 ] and [ CO , . N 2 O ] that contain oxides of same nature (acidic, basic, neutral or amphoteric) is 4. Statement-II : Among Na 2 O , Al 2 O 3 , CO and Cl 2 O 7 , the most basic and acidic oxides are Na 2 O and Cl 2 O 7 , respectively. In the light of the above statements, choose the correct answer from the options given below:

Both Statement-I and Statement-II are true.

Both Statement-I and Statement-II are false.

Statement-I is true but Statement-II is false.

Statement-I is false but Statement-II is true.

Chemistry · p-Block (I) (Grp. 13, 14)

JEE Main 2026 — 5 April, Evening Shift — Question 56

Given below are two statements :

Statement-I : The number of pairs among $\left[\mathrm{Al}_{2} \mathrm{O}_{3}\right.$ , $\left.\mathrm{Cr}_{2} \mathrm{O}_{3}\right],\left[\mathrm{Cl}_{2} \mathrm{O}_{7}, \mathrm{Mn}_{2} \mathrm{O}_{7}\right],\left[\mathrm{Na}_{2} \mathrm{O}, \mathrm{V}_{2} \mathrm{O}_{3}\right]$ and $[\mathrm{CO}$ , $\left.\mathrm{N}_{2} \mathrm{O}\right]$ that contain oxides of same nature (acidic, basic, neutral or amphoteric) is 4.

Statement-II : Among $\mathrm{Na}_{2} \mathrm{O}, \mathrm{Al}_{2} \mathrm{O}_{3}, \mathrm{CO}$ and $\mathrm{Cl}_{2} \mathrm{O}_{7}$ , the most basic and acidic oxides are $\mathrm{Na}_{2} \mathrm{O}$ and $\mathrm{Cl}_{2} \mathrm{O}_{7}$ , respectively.

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

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

Answer: A

Step-by-step solution

$\mathrm{Al}_{2} \mathrm{O}_{3}, \mathrm{Cr}_{2} \mathrm{O}_{3}$ : Amphoteric $\mathrm{CO}, \mathrm{N}_{2} \mathrm{O}$ : Neutral $\mathrm{Na}_{2} \mathrm{O}, \mathrm{V}_{2} \mathrm{O}_{3}$ : Basic $\mathrm{Cl}_{2} \mathrm{O}_{7}, \mathrm{Mn}_{2} \mathrm{O}_{7}$ : Acidic

Statement II : Most basic oxide : $\mathrm{Na}_{2} \mathrm{O}$ Most acidic oxide : $\mathrm{Cl}_{2} \mathrm{O}_{7}$

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Exam: JEE Main 2026
Paper: 5 April, Evening Shift
Subject: Chemistry
Chapter: p-Block (I) (Grp. 13, 14)
Topic: Introduction & Properties of Group 13: Boron Family

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Step-by-step solution

Practise p-Block (I) (Grp. 13, 14)

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