JEE Main 2026 — Chemistry Inorganic Chemistry

2026mcqmedium

Given below are two statements :

Statement I: The number of pairs among $[Al_2O_3, Cr_2O_3]$ , $[Cl_2O_7, Mn_2O_7]$ , $[Na_2O, V_2O_3]$ and $[CO, N_2O]$ that contain oxides of same nature (acidic, basic, neutral or amphoteric) is $4$ .

Statement II: Among $Na_2O$ , $Al_2O_3$ , $CO$ and $Cl_2O_7$ , the most basic and acidic oxides are $Na_2O$ and $Cl_2O_7$ , respectively.

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

Official previous-year question

Held on 5 Apr 2026 · Verified 6 Jul 2026.

Options

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

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Solution

Statement I:

$Al_2O_3$ and $Cr_2O_3$ are both amphoteric oxides.

$Cl_2O_7$ and $Mn_2O_7$ are both acidic oxides.

$Na_2O$ and $V_2O_3$ are both basic oxides.

$CO$ and $N_2O$ are both neutral oxides.

All $4$ pairs contain oxides of the same nature. Hence, Statement I is true.

Statement II:

$Na_2O$ is a strongly basic oxide.

$Al_2O_3$ is an amphoteric oxide.

$CO$ is a neutral oxide.

$Cl_2O_7$ is a strongly acidic oxide.

Thus, the most basic oxide is $Na_2O$ and the most acidic oxide is $Cl_2O_7$ . Hence, Statement II is true.

Both Statement I and Statement II are true.

Answer: Both Statement I and Statement II are true

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Solution

Statement I:

$Al_2O_3$ and $Cr_2O_3$ are both amphoteric oxides.

$Cl_2O_7$ and $Mn_2O_7$ are both acidic oxides.

$Na_2O$ and $V_2O_3$ are both basic oxides.

$CO$ and $N_2O$ are both neutral oxides.

All $4$ pairs contain oxides of the same nature. Hence, Statement I is true.

Statement II:

$Na_2O$ is a strongly basic oxide.

$Al_2O_3$ is an amphoteric oxide.

$CO$ is a neutral oxide.

$Cl_2O_7$ is a strongly acidic oxide.

Thus, the most basic oxide is $Na_2O$ and the most acidic oxide is $Cl_2O_7$ . Hence, Statement II is true.

Both Statement I and Statement II are true.

Answer: Both Statement I and Statement II are true

JEE Main 2026 — Chemistry Inorganic Chemistry

Options

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Solution

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JEE Main 2026 — Chemistry Inorganic Chemistry

Options

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Solution

Your note

JEE Main Inorganic Chemistry in other years

More JEE Main Inorganic Chemistry questions

Other Chemistry topics for JEE Main

Physical Chemistry

Organic Chemistry

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