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Why is diamond hard while graphite is so...

Why is diamond hard while graphite is soft?

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The structure of diamond is very rigid. Each carbon atom in it is joined to four other carbon atoms forming a rigid tetrahedron structure. One carbon atom is present at the centre of a regular 1 tetrahedron while four others occupy the corners. This type of structure makes diamond the hardest substance.
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Explore conceptually related problems

(a) What is the unique property of carbon atom? Hopw is this property helpful to us ? (b) Explanin why , diamond is hard while graphite is soft (though both are made of carbon atoms).

Consider the following statements : 1. Diamond is hard and graphite is soft. 2. Diamond is soft and graphite is hard. 3. Diamond is a bad conductor but graphite is a good conductor . 4. Diamond is a good conductor but graphite is a bad conductor. Which of the statements given above is/are correct ?

Diamond is harder than graphite.

Diamond and graphite are the

(A) Graphite is soft while diamond is hard. (R) Graphite has three dimensional structure while diamond has planar.

S CHAND IIT JEE FOUNDATION-CARBON AND ITS COMPOUNDS -QUESTION BANK 19 (NAME THE FOLLOWING )
  1. Does not have a fixed crystalline shape

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  2. what is produced after destructive distillation of coal.

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  3. what is an essential constituent of all organic substances.

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  4. This is a crystalline form of carbon which has football shaped spheric...

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  5. The allotrope of carbon used for making the black cores of pencils.

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  6. Allotrope of carbon used in cutting glass and rock drilling.

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  7. Amorphous form of carbon used in making shoepolish.

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  8. Gas generated in fire extinguishers which is responsible for controlli...

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  9. Why should soda-acid and foam-type extinguishers not be used in fighti...

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  10. Why is diamond hard while graphite is soft?

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  11. Why is graphite a good conductor of electricity but diamond is not?

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  12. An element belonging to group 14 of the periodic table has two common ...

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  13. A boy sharpens a pencil at both the ends and then uses its back ends t...

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  14. A colourless gas is produced on heating strongly a piece of black clec...

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  15. Why can inhaling of carbon monoxide become fatal?

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  16. Why is it dangerous to sleep in a closed room with a coal fire burning...

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  17. How does carbon dioxide help to extinguish fires?

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  18. What are the different products formed when methane and chlorine are m...

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