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Give justification, Graphite is a better...

Give justification, Graphite is a better lubricant on moon than that on earth.

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Give reasons (iii) Graphite is used as a lubricant

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On the basis of enthalpy of formation, graphite is more stable than diamond, yet diamond does not change into graphite for years. Explain why?

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MAXIMUM PUBLICATION-The p-block Elements-Exercise
  1. Explain the following: Coke and Charcoal

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  2. Give justification, The first lonisation enthalpy of carbon is greater...

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  3. Give justification, Graphite is a better lubricant on moon than that o...

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  4. Match the following:

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  5. Wite down the corresponding elements in the figure : 1)……………… br 2)………...

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  6. The simplest boron hydride is diborane. Wire down the molecular formul...

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  7. The simplest boron hydride is diborane. Distinguish between terminal h...

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  8. How is orthoboric acid prepared?

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  9. Account for the acidic nature of orthoboric acid.

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  10. How is diborane prepared in the laboratory?

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  11. BCl3 is a good Lewis acid. Why?

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  12. Name the allotropes of carbon

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  13. Carbon monoxide is highly poisonous. Do you agree? Justify

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  14. Diamond is hard and non conducting while graphite is soft and conducti...

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  15. Explain the action of heat on boric acid.

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  16. What is inorganic benzene? How is it formed?

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  17. Explain the difference in properties of diamond and graphite on the ba...

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  18. How do you explain the lower atomic radius of gallium as compared to a...

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  19. Boron resembles silicon in many of its properties. What is this resemb...

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  20. What is dry ice? What is it used for?

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