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An example of weak alkali solution is .....

An example of weak alkali solution is ......

A

Sodium hydroxide

B

Nitrogen dioxide

C

Ammonium hydroxide

D

Potassium hydroxide

Text Solution

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The correct Answer is:
To determine an example of a weak alkali solution, we need to understand what a weak alkali is. A weak alkali is a basic solution that does not completely dissociate into its ions when dissolved in water. Instead, it partially dissociates, which is characteristic of weak electrolytes. ### Step-by-Step Solution: 1. **Understand the Definition of Weak Alkali**: - A weak alkali is a substance that can accept protons (H⁺) or donate hydroxide ions (OH⁻) but does not fully dissociate in solution. This means that not all of the molecules break apart into ions. 2. **Identify Strong Bases**: - Strong bases, such as sodium hydroxide (NaOH), potassium hydroxide (KOH), calcium hydroxide (Ca(OH)₂), etc., fully dissociate in water. Therefore, they cannot be considered weak alkalis. 3. **Consider Examples of Weak Bases**: - Common examples of weak bases include ammonium hydroxide (NH₄OH) and others that do not fully dissociate in water. 4. **Evaluate the Given Options**: - If the options include substances like sodium hydroxide (strong base), potassium hydroxide (strong base), nitrogen dioxide (not a base), and ammonium hydroxide (weak base), we can identify the weak alkali. 5. **Select the Correct Answer**: - Among the options, ammonium hydroxide (NH₄OH) is a weak alkali because it partially dissociates in solution, making it the correct answer. ### Final Answer: An example of a weak alkali solution is **ammonium hydroxide (NH₄OH)**. ---
To determine an example of a weak alkali solution, we need to understand what a weak alkali is. A weak alkali is a basic solution that does not completely dissociate into its ions when dissolved in water. Instead, it partially dissociates, which is characteristic of weak electrolytes. ### Step-by-Step Solution: 1. **Understand the Definition of Weak Alkali**: - A weak alkali is a substance that can accept protons (H⁺) or donate hydroxide ions (OH⁻) but does not fully dissociate in solution. This means that not all of the molecules break apart into ions. 2. **Identify Strong Bases**: ...
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