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प्रश्न
Give word equation for the following conversion:
Nitric acid to soluble nitrates in the soil
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उत्तर
Nitric acid+ calcium carbonate → Calcium nirtate + water + carbon dioxide
The water soluble calcium nitrates are absorbed by the plants and converted to plant proteins.
संबंधित प्रश्न
“Air is a mixture”. Support this statement citing at least three evidences.
Tick (√) the most appropriate answer.
Symbiotic bacteria is not present in the nodules of :
Tick (√) the most appropriate answer.
Which is not a polluting gas for the air?
What do you observe when Ice cold water is filled in a glass tumbler.
Of the total volume of air – 4/5th is nitrogen. State the utility or consequence of this ratio.
Write the percentage of the gases present in air.
List uses of oxygen.
The second major component of air is oxygen.
Match the following:
| 1. | More industrial cities | a. | dust particles |
| 2. | Coastal areas | b. | Humidity |
| 3. | Rainy season | c. | Carbon dioxide |
| 4. | Windy places | d. | water vapour |
Boojho took an empty plastic bottle, turned it upside down and dipped its open mouth into a bucket filled with water. He then tilted the bottle slightly and made the following observations.
- Bubbles of air came out from the bottle.
- Some water entered the bottle.
- Nitrogen gas came out in the form of bubbles and oxygen got dissolved in water.
- No bubbles formed, only water entered the bottle.
Which observations is/are correct?
