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प्रश्न
Name two major non-metals which are present in fertilisers and enhance the growth of plants.
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उत्तर
Two major non-metals which are present in fertilisers and enhance the growth of plants are:
- Nitrogen
- Phosphorus
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संबंधित प्रश्न
Fill in the blank spaces by choosing the correct words from the given list.
List: amalgam, chlorine, gallium, sodium chloride, silver chloride
______ is a liquid metal.
Write ‘True’ or ‘False’ in front of following statement.
Brass is an alloy of copper and zinc and has lustrous yellow colour.
State the position of the following in the periodic table:
Alkaline earth metals
Write name.
Molecular formula of the common ore of aluminium.
Match the alloys given in column I to the uses given in column II :
| Column I | Column II |
| (i) Duralumin | A. Electrical fuse |
| (ii) Solder | B. Surgical instruments |
| (iii) Brass | C. Aircraft body |
| (iv) Stainless Steel | D. Decorative articles |
The minerals from which the metal can be separated economically are called _______.
Write the name.
Two highly reactive metals-
Assertion: Mercury is solid in room temperature.
Reason: Mercury is a non-metal.
Why do metals appear shiny?
Which metals are liquid at room temperature?
