Advertisements
Advertisements
प्रश्न
Give the significance of pH of soil in agriculture.
उत्तर
In agriculture, the pH of soil is very important. Citrus fruits require slightly alkaline soil, while rice requires acidic soil and sugarcane requires neutral soil.
APPEARS IN
संबंधित प्रश्न
Give one example in the following case:
An oxide which is a base.
Distinguish between acid and alkali (other than indicators).
Why indicator does not get affected by salt?
Bases are soapy to touch when they are dry.
A solution changes the colour of the turmeric indicator from yellow to red. The solution is
Look at Figure 5.1 which shows solutions taken in test tubes A, B, C and D. What colour is expected when a piece of red litmus paper is dropped in each test tube? The nature of the solutions is given in the table for your help.
| Test tube | Nature of Solution | Change in colour of red litmus |
| A | Neutral | |
| B | Basic | |
| C | Acidic | |
| D | Neutral |
Sodium carbonate is commercially called ______.
Al(OH)3 & Zn(OH)2 are not alkalis.
One of the events that does not occur during photosynthesis is ______.
A small amount of copper oxide was taken in a beaker and dilute hydrochloric acid was added with continuous stirring of the solution. Name the compound formed and state the colour of its solution. Write the balanced chemical equation for the reaction that occurs. Based on the reaction, state the nature (acidic/basic) of copper oxide.
