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प्रश्न
Name A substance used as an insulator.
उत्तर
Plastic is used as insulator as it is bad conductor of electricity
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संबंधित प्रश्न
Give Two Examples for Each of the Following: Non-metals
How is sodium chloride different from its constituent elements, sodium and chlorine in its properties? Justify.
Give two examples of the following.
Inert gases
Answer the following question:
When iron is mixed with sulphur at room temperature, it does not form a compound. Why?
Elements are classified into – Metals – Non-metals – Metalloids – Noble gases. State which of A, B, C, D is a –
1. Metallic element
2. Non-metallic element
3. Metalloid
4. Noble gas.
A: Is non-malleable, non-ductile & a poor conductor of electricity ___________
B: Has lustre, is malleable and ductile & a good conductor of heat ___________
C: Is unreactive and inert and present in traces in the air _________
D: Shows properties of both metals and non-metals ___________
Select the correct answer from the choice given below.
The type of molecule- bromine
Select the correct answer from the choice given below.
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Who are my companions?
| Group 'A' | Group 'B' |
| 1. Stainless steel | (a) Non-metal |
| 2. Silver | (b) compound |
| 3. Bhajani mixture for milling | (c) Mixture |
| 4. Salt | (d) Element |
| 5. Coal | (e) Alloy |
| 6. Hydrogen | (f) Metal |
Give an example of two liquids that form heterogeneous – mixtures.
An element is sonorous and highly ductile. Under which category would you classify this element? What other characteristics do you expect the element to possess?
