Oxides that react with acids to form salts are known as :

basic oxides

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acidic oxides

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amphoteric oxide

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none of above

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Solution

The correct options are
A basic oxides
B amphoteric oxide
Amphoteric oxides are compounds of oxygen which exhibits both acidic as well as basic characteristics. These oxides when react with acid, undergoes neutralization reaction to form water and salt. This exhibits the basic property of the compounds. Similarly reacts with alkali to form salt and water, exhibiting acidic property. Example: aluminium oxide

Acidic characteristics:
$A l_{2} O_{3} + 6 H C l$ → $2 A l^{3 +} + 6 C l^{-} + 3 H_{2} O$

Basic characteristics:
$A l_{2} O_{3} + 2 O H^{-} + 3 H_{2} O \to 2 [A l {(O H)}_{4}]^{-}$

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Similar questions

Metal oxides which react with both, acids as well as bases, to produce salt and water are known as ___ oxides.

Metal oxides which react with both acids and bases to produce salt and water are known as amphoteric oxides.

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Metal oxides which react with both acids as well as bases to produce salt and water are known as ___.

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