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प्रश्न
Name the following:
The product formed when phosphorus burns in oxygen.
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उत्तर
Phosphorus pentoxide (P2O5).
संबंधित प्रश्न
Write ‘True’ or ‘False’ in front of following statement.
Enamelling is the process of baking a mixture of silicates on the surface of aluminium at a high temperature.
Name the components of air with their approximate percentage by volume in air. Does the percentage by volume of each component remain the same, in the atmosphere of different parts of the world? Explain with reasons.
Of the total volume of air – 4/5th is nitrogen. State the utility or consequence of this ratio.
How will you prove that soil contains air in it?
What is the presence of harmful substance in the air called?
______ gas is essential for the proper growth of all plants.
The components of air which are harmful to living beings are ______.
A list of words is given in a box. Use appropriate words to fill up the blank in the following statement.
Mountaineers carry oxygen ______ with them, while climbing high mountains.
Observe the picture given in Fig. carefully and answer the following questions.
Can you comment on the air quality of the place shown in Fig?
Explain the following observations very briefly
An empty glass in fact is not empty.
