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What type of ions are formed? When a base (or alkali) is dissolved in water.

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Question

What type of ions are formed?

When a base (or alkali) is dissolved in water.

Very Short Answer
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Solution

When a base is dissolved in water, it always produces hydroxide (OH−) ions.

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Chapter 2: Acids, Bases and Salts - Exercise 2 [Page 103]

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Lakhmir Singh Chemistry Part 2 [English] Class 10
Chapter 2 Acids, Bases and Salts
Exercise 2 | Q 37. (c) (ii) | Page 103

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