Question

please answer me correct did you don't know the answer didn't write the answer​

Answer 1

Answers:

1) The pH value of water is 7 which indicates that it is a neutral liquid.

Explanation: The pH value determines whether a given substance is acidic, basic or neutral. Those substances that fall below pH value 7 are acidic and those substances that fall above pH value 7 are basic in nature.

2) Yes, the water in the beaker will turn basic as caustic soda [NaOH] is a basic substance. So the pH value of the water becomes greater than 7 which indicates that the water is basic.

Explanation: Caustic soda is a a basic substance. So when it is added to water, it will automatically make the water basic in nature and increase the pH value to above 7.

Knowledge Bytes:

→ pH scale

The pH scale helps to determine whether a given substance is acidic, basic or neutral in nature. The scale is from 0 to 14 with 7 being neutral. All values below 7 are acidic and all values above 7 are basic. Value 0 refers to extreme acidity and value 14 refers to extreme basicity.

Attached is a chart that shows the pH scale.