pls solve my these questions
Answers
Answer:
Step-by-step explanation:
1) (a) more than 5
2) fresh milk has a pH of 6 but when it is converted into curd it's pH value changes because curd is an organic acid and acids have a pH value below 7
3) Solution A has more hydrogen ion concentration o because less the pH of the solution more the concentration of hydrogen ions in it.
4) Farmer will treat his soil with quick lime, slaked lime and chalk because the acidic content of the soil has increased due to which soil is infertile so to neutralize the acidic effect of soil we use bases like quick lime, slaked lime and chalk.
5) Antacid is a base which neutralizes excess of acid in the stomach. Hydrochloric acid is secreted by stomach during digestion. Antacids such as sodium bicarbonate and magnesium hydroxide and aluminum hydroxide neutralize the excess stomach acid. Antacids control the symptoms but not cause.