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प्रश्न
Write the chemical name of The white insoluble solid formed on the reaction of carbon dioxide with lime water.
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उत्तर
Calcium carbonate – CaCO3
These droplets were present in the air as moisture which got condensed on the cooler walls of a glass tumbler. This shows the presence of water vapours in air.
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संबंधित प्रश्न
Tick (√) the correct alternative from the choice given for the following statement.
Photosynthesis is a process in which plants
Fill in the blank:
Nitrogen of the air is utilized by plants for formation of _____.
Air has variable composition and hence there is ______ oxygen at lower altitudes than at higher altitudes.
Complete the statement given below by filling in the blank with the correct word/s from the word/s given below
____________ is an example of a pollutant present in the air.
What is wind energy?
Take a squeezable bottle. Make a hole on the lid and close the bottle tightly. Bring the bottle near your face and press the bottle. What do you feel?
The layer of air around the earth is known as ______.
List five activities that are possible due to the presence of air.
______ is important for all living creatures.
Paheli kept some water in a beaker for heating. She observed that tiny bubbles appeared before the water started to boil. She boiled the water for about 5 minutes and filled it in a bottle up to the brim and kept the bottle air tight till it cooled down to room temperature.
Why did the tiny bubbles appeared?
