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प्रश्न
Name a non-metal having lustre (shining surface).
उत्तर
Iodine is a non-metal that is lustrous (shining surface).
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संबंधित प्रश्न
Write any three differences between metals and non-metals with respect to their physical properties.
State any five physical properties of non-metals.
Name two physical properties of carbon in which it's behaviour is not as expected from it's classification as non-metal.
Name the metals present in the following alloys
Duralumin
Match the statements in Column A, with those in Column B .
| Column A | Column B | ||
| 1 | A metal used for making high quality mirrors . | a | Chlorine |
| 2 | A metal which neither malleable nor ductile. | b | Graphite |
| 3 | A non-metal,used in the sterilsation of water. | c | Iodine |
| 4 | A non-metal, whose deficiency can lead to disease like goitre. | d | Silver |
| 5 | A non -metal which can be used as dry lubricant. | e | Zinc |
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. |
Name the following:
or
With reference to the physical properties of metals and non-metals, state the following exception.
A metal which is liquid at room temperature.
Name a non-metal which can form a positive ion.
Explain the following:
Metals like calcium and magnesium are never found in their free state in nature.
Find the odd one out and give its explanation.
