Question

Difference between acidic oxides and basic oxides. ​

Answer 1

acidic acid

Acidic oxides are the oxides of non-metals (and these acid anhydrides form acids with water:

Sulfurous Acid

SO2+H2O→H2SO3(1)

Acidic oxides are known as acid anhydrides (e.g., sulfur dioxide is sulfurous anhydride and sulfur trioxide is sulfuric anhydride) and when combined with bases, they produce salts, e.g.,

SO2+2NaOH→Na2SO3+H2O(4)

Basic Oxides

Generally Group 1 and Group 2 elements form bases called base anhydrides or basic oxides e.g.,

K2O(s)+H2O(l)→2KOH(aq)(5)

Basic oxides are the oxides of metals. If soluble in water, they react with water to produce hydroxides (alkalies) e.g.,

CaO+H2O→Ca(OH)2(6)

MgO+H2O→Mg(OH)2(7)

Na2O+H2O→2NaOH(8)

These metallic oxides are known as basic anhydrides. They react with acids to produce salts.

Answer 2

Answer:

An oxide that combines with water to give an acid is termed as an acidic oxide. The oxide that gives a base in water is known as a basic oxide. An amphoteric solution is a substance that can chemically react as either acid or base.

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