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प्रश्न
State one use of Nitrogen.
उत्तर
Nitrogen, due to its inertness, is used to preserve food material.
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संबंधित प्रश्न
Tick (√) the most appropriate answer.
Sodium amalgam is prepared by dissolving sodium in :
State any five physical properties of a non-metal.
Select from the following ist:
`Fe_2O_3, , NO, PbO, Mn_2O_7`
Basic oxide………..
Name:
a metal which is brittle
Which metals do not corrode easily?
Why do gold ornaments look new even after several years of use?
Make pairs of substances and their properties
| Substance | Property |
| a. Potassium bromide (KBr) | 1. Combustible |
| b. Gold | 2. Soluble in water |
| c. Sulphur | 3. No chemical reaction |
| d. Neon | 4. High ductility. |
Fill in the Blank and Rewrite the Statements:
Elements showing properties of both metals and nonmetals are known as _________.
Complete the statement given below, by filling in the blank with the correct word:
A non-metal added to swimming pools to kill germs_____.
The metal is stored in kerosene ______.
