12. Complete Activity 2.12 (Page 27).
- Put about 2 g soil in a test tube and add 5 mL water to it.
- Shake the contents of the test tube.
- Filter the contents and collect the filtrate in a test tube.
- Check the pH of this filtrate with the help of universal indicator paper.
- What can you conclude about the ideal soil pH for the growth of plants in your region?
Answer:
Aim: To check the pH of the filtrate and conclude regarding ideal soil pH for the growth of plants in your region.
Materials Required: 2 g soil, test tube, 5 mL water, universal indicator paper.
Procedure:
(i) Place the 2 g of soil in the test tube.
(ii) Add 5 mL of water to the test tube.
(iii) Set up a filtration apparatus using a funnel and filter paper.
(iv) Filter the contents through the filtration apparatus and collect the filtrate in a test tube.
(v) Check the pH of this filtrate using universal indicator paper.Report the observations.
Observations:
The pH of the filtrate was found to be around 6.
Conclusions: The ideal pH for the growth of plants in my region would be in the range of 5.5 – 7, neither too acidic nor too basic.
“12. Complete Activity 2.12 (Page 27).
What can you conclude about the ideal soil pH for the growth of plants in your region?
Put about 2 g soil in a test tube and add 5 mL water to it.
Shake the contents of the test tube.
Filter the contents and collect the filtrate in a test tube.
Check the pH of this filtrate with the help of universal indicator paper.” – Solved.
Related Links:
Solution to Group Activity
Solution to Activity 2.1
Solution to Activity 2.2
Solution to Activity 2.3
Solution to Activity 2.4
Solution to Activity 2.5
Solution to Activity 2.6
Solution to Activity 2.7
Solution to Activity 2.8
Solution to Activity 2.9
Solution to Activity 2.10
Solution to Activity 2.11
Solution to Activity 2.12
Solution to Activity 2.13
Solution to Activity 2.14
Solution to Activity 2.15
