Acid and basic oxide, respectively, are 1) H2SO4 and K2O2) NH4Cl and N2O3) NH3 and CO24) HCl and Al2O3

1) H2SO4 and K2O is the correct answer.

2) NH4Cl and N2O is the wrong answer, since NH4Cl is a salt and N2O is an acidic oxide.

3) NH3 and CO2 are wrong answer as NH3 is nitride and CO2 is acidic oxide.

4) HCl and Al2O3 is the correct answer.

Answer: 1) H2SO4 and K2O; 4) HCl and Al2O3.



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