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Question
Copper oxide is a/an
Copper oxide is a/an
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Solution
The correct option is D alkali
A water soluble base is known as an alkali.
Copper oxide is a base because it will react with acids and neutralises them, but it is not an alkali because it does not dissolve in water. Potassium hydroxide is a base because it will react with acids and neutralises them. It's also an alkali because it dissolves in water.
Hence, all alkalis are bases but all bases are not alkalis.
A water soluble base is known as an alkali.
Copper oxide is a base because it will react with acids and neutralises them, but it is not an alkali because it does not dissolve in water. Potassium hydroxide is a base because it will react with acids and neutralises them. It's also an alkali because it dissolves in water.
Hence, all alkalis are bases but all bases are not alkalis.
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