NCERT Solution for Class Tenth Science Chapter 2
Acids, Bases and Salts
Intext Questions
Page No-12
Questions No-3
Do basic solutions also have H+(aq) ions? If yes, then why are these basic?
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Yes, basic solution also has H⁺(aq) ions. However, their concentration is less as compared to the concentration of OH⁻ ions that makes the solution basic.
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Yes, the basic solution also has H+ ions. However, H+ concentration is less as compared to the concentration of OH− ions so the solution is basic.
Basic solutions typically contain hydroxide ions (OH-) rather than hydrogen ions (H+). In basic solutions, the concentration of hydroxide ions is higher than that of hydrogen ions. The presence of hydroxide ions is what makes a solution basic.
In contrast, acidic solutions have a higher concentration of hydrogen ions (H+) and a lower concentration of hydroxide ions. The pH scale is commonly used to express the acidity or basicity of a solution. A solution with a pH less than 7 is considered acidic, while a solution with a pH greater than 7 is considered basic. A pH of 7 is considered neutral, indicating an equal concentration of hydrogen and hydroxide ions.
So, while basic solutions do have some hydrogen ions, it’s the higher concentration of hydroxide ions that gives them their basic properties.