Chapter 18.1, Problem 6SSC

Interpretation Introduction

Interpretation:

The physical and chemical properties of acids and bases are to be compared.

Concept introduction:

There are many theories which categorize various substances as acids and bases.

According to Arrhenius,

Acid is a substance which gives hydrogen ion and Base is a substance which gives hydroxyl ions in aqueous solution.

According to Bronsted-Lowry,

Acid is a substance which donate hydrogen ion and Base is a substance which accept hydrogen ion.

According to Lewis concept,

Acid is a substance which is electron acceptor and base is a substance which is electron donor.

Answer to Problem 6SSC

Properties	Acid	Base
Physical	Sour in taste Conducts electricity Generally sticky	Bitter in taste Conducts electricity Slippy in touch
Chemical	Turns blue litmus red Reacts with active metal to produce hydrogen gas.	Turns red litmus blue Reacts with metals to produce salt and hydrogen gas.

Explanation of Solution

Acids are substances which are sour in taste and turn blue litmus red.

Bases are substances which are bitter in tatse and turn red litmus blue.

Conclusion

Thus, some properties of acids and bases are similar and some are different.