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Match each oxide in Column-I with its correct nature in Column-II. Column-I: (P) Cr2O3, (Q) CrO3, (R) Fe3O4, (S) N2O Column-II: (1) Neutral oxide, (2) Amphoteric oxide, (3) Mixed oxide, (4) Acidic oxide Choose the correct matching for P Q R S.

1. P-2, Q-4, R-3, S-1
2. P-2, Q-3, R-4, S-1
3. P-4, Q-2, R-3, S-1
4. P-4, Q-3, R-1, S-2

Correct answer: P-2, Q-4, R-3, S-1

Solution

Cr2O3 is amphoteric, CrO3 (Cr in +6) is acidic, Fe3O4 is a mixed oxide, and N2O is neutral.

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