Question

Q.20 Write whether the following substances are acidic, basic or neutral.
1. orange juice =
2. Lemon Juice =
3. Pure Juice =
4. Lime water =
5. Common salt =
6. Sour Milk =​

Answer 1

1.orange juice - acid (pH 3.3 to 4.2)

2.lemon juice - acid (pH 2.0)

3.pure juice - acid ( all fruit juices are acidic in nature)

4.lime water - basic ( pH 12.4)

5.common salt (NaCl) - neutral (pH =7)

6.sour milk - acid (Milk fresh from the cow typically has a pH between 6.5 and 6.7. The pH of milk changes over time. As milk goes sour, it becomes more acidic and the pH gets lower. This occurs as bacteria in milk convert the sugar lactose into lactic acid).