3.Answer the following questions.
a. Explain the difference between acid
and alkali.
b. Why indicator does not get affected
by salt?
c.Which substances are produced by neutralization process ?
d. Which are the industrial uses of acids?
Answers
Answer:
a. Acids contain lots of hydrogen ions, which have the symbol H+. Alkalis contain lots of hydroxide ions, symbol OH-.Acids are chemical species that show acidic characteristics. Alkaline is a type of base. Therefore, alkaline solutions show basic properties.
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.
b.Indicators are not affected by salt as salt is the product of acid and base which is neutral. Indicators are substances which gives a prominent sign to identify the presence of acids and alkali in the solution. Salt is produced from the reaction of acids and bases.
c. salt and water
d.Sulfuric acid is used to make other chemicals, reduce corrosion, refine oil and create fertilizers. Nitric acid is used to make explosives, dyes and fertilizers. Hydrochloric acid is used in science labs all over, and is used to make PVC, food products and help extract metals.
hope it helps