a. Explain the difference between acid
and alkali.
b. Why indicator does not get affected
by salt?
Answers
Difference Between Acid and Alkaline
Definition
Acid: An acid is a chemical species that has a pH below 7.
Alkaline: An alkaline solution is a chemical that has a pH below 7.
Ions Present
Acid: Aqueous solutions of acids are composed of H+ ions.
Alkaline: Aqueous solutions of alkaline are composed of OH– ions.
Taste
Acid: Acids are sour in taste.
Alkaline: Alkalines are bitter tasting.
Texture
Acid: Acids are sticky.
Alkaline: Alkalines are slippery.
Neutralization
Acid: Acids can be neutralized by bases.
Alkaline: Alkalines can be neutralized by acids.
Conclusion
Acids and alkalines are solutions having lower and higher pH values, respectively. The main difference between Acid and Alkaline is that the pH of acids lies below pH 7 whereas the pH of alkaline is above pH 7. They play a very important role in determining the acidity and alkalinity of water. Therefore they are valuable parameters in checking the water quality for drinking and other purposes.