Chemistry
Grade-10
Easy
Question
Which of the following is considered weak acid?
- Sulphuric acid
- Nitric acid
- Phosphoric acid
- Hydrobromic acid
Hint:
An electrolyte is a material that makes an electrically conducting medium when dissolved in a polar solvent like water. The dissolved electrolyte dissociates into cations and anions, which scatter uniformly throughout the solvent. A weak electrolyte will not dissociate or ionize easily in the solvent.
The correct answer is: Phosphoric acid
Phosphoric acid is considered a weak acid.
- Because it doesn't entirely dissolve into H+ ions in an aqueous solution, H3PO4 or Phosphoric acid is regarded as a weak acid.
- It means that some moles of H3PO4 remain bonded (undissociated) in solution after being dissolved in an aqueous solution and do not fully ionize to produce H+ ions.
- Phosphoric acid that is quite weak.
- One, two, or three hydrogen ions can be swapped out to create salts of phosphoric acid.
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