Answer : The correct option is, sour taste
Explanation :
Acid : It is a substance that has ability of donating proton or hydrogen ion or hydronium ion, \(H^+\).
The properties of an acid are :
- Acids are sour in taste.
- The texture of an acid solution is sticky.
- It changes the color of the litmus paper to red.
- It react with a metal to give compound and hydrogen gas.
- The pH of an acid is less than 7.
Base : It is a substance that has ability of donating hydroxide ion, \(OH^-\).
The properties of an base are :
- Base are bitter in taste.
- The texture of an base solution is slippery.
- It changes the color of the litmus paper to blue.
- It does not react with a metal.
- The pH of a base is more than 7.
As per question, the pH is 5 that means the solution is acidic in nature and follow the properties of an acid. So, the pH = 5 has the sour taste characteristic. While the other options are the properties of a base.
Hence, the correct option is, sour taste
