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Carbons in diamond exist in...

Carbons in diamond exist in

A

Planar arrangement

B

Octahedral arrangement

C

Tetrahedral arrangement

D

square planar arrangement

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The correct Answer is:
C
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Allotropes of carbon: There are three forms of carbon. i.e., diamond, graphite and fullerene which exxist in crystalline form. Graphite and diamond occur in nature. The structure of diamond is tetrahedral with sp^(3) hybridisation and diamond exist in 3-D netowrk solid. in graphite, carbon is sp^(2) hybridised. each carbon linked to other carbon linked to other carbon atom forms hexagonal ring. it has a layered structure. diamond and graphite are purest form of carbon. Fullerene constitute a new family of carbon allotropes. Consisting of large spheroidal molecule of compound with general formula C_(2n) . common fullerene C_(6),C_(70) , contain 5 and 6 membered rings. Q. Which of the following statement is incorrect for graphite?

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With reference to the structure of the two crystalline allotropes of carbon, state why diamond is inert or unreactive while graphite in comparably more reactive,

In the reaction for the transition of carbon in the diamond form to carbon in the graphite form, Delta H is -453.5 cal. This points out that

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VMC MODULES ENGLISH-CHEMICAL BONDING & CHEMICAL STRUCTURE -IMPECCABLE
  1. Isoelectronic species are

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  2. Hydrogen bonding is maximum in

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  3. Carbons in diamond exist in

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  4. CO is isoelectronic with

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  5. The structure of H2O2 is

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  6. Which of the following is the correct order of bond angle in H2S, NH3,...

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  7. Which is not a pyramidal molecule ?

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  8. Which one of the following has the regular tetrahedral structure? (A...

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  9. The correct order regarding the electronegativity of hybrid orbitals o...

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  10. The electronegaivity difference between N and F is greater than that b...

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  11. In which of the following pairs, the two species are iso-structural ?

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  12. The corrrect order of C-O bond length among CO, CO3^(2-), CO2 is

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  13. What is the dominant intermolecular force or bond that must be overco...

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  14. Which one of the following species does not exist under normal conditi...

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  15. Which of the following has the minimum bond length ?

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  16. Which of the two lons from the list given have the geometry that is ex...

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  17. During change O(2) to O(2)^(-) ion, the electron adds on which one of ...

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  18. Four diatomic species are listed below. Identify the correct order in ...

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  19. Which one of the following pairs is isostructural (i.e. having the sam...

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  20. Which of the following options represents the correct bond order ?

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