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How many of the following statements are...

How many of the following statements are correct regarding allotropes of carbon:
(a) Graphite is not a good conductor of electicity in perpendicular direction of layers at ordinary temperatures.
(b) Coke is the impure form of carbon.
( c) Anthracite is the purest form of carbon.
(d) Buckminister fullerence contains `12` five membered rings and `20` six-membered rings.
(e) Diamond is a good conductor of heat.
(f) Graphite is diamagnetic in nature.
(g) Graphite is thermodynamically more stable than diamond

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RESONANCE-P-BLOCK ELEMENT (BORON AND CARBON FAMILY)-Exercise-2 Part-II : SINGLE AND DOUBLE VALUE INTEGER TYPE
  1. How many of the following statements are correct regarding allotropes ...

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  2. For boron family (B,Al,Ga,In and Tl) x : Number of elements which a...

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  3. Consider a prototypical fullerene, C(60) Let, a = Number of 5-memb...

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  4. Central atom may exhibit sp^(3) hybridisation in how many of the follo...

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  5. Mg+BtoMg(x)B(y)overset("HCl")toDiborane Report your answer as (x+y)...

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  6. B+underset(conc.)(HNO(3))tounderset("white solid")(A)+underset("brown ...

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  7. How many of the following order of bond energies are correct. (i) C...

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  8. Which of the following Salts are amphoteric in anture. PbO,PbO(2), ...

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  9. the summation of atomicity of compounds in x,y and z is?

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  10. Reduction of 117.5 g BCl(3) by H(2) in silent electric discharge prod...

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  11. 4 moles of NaBH(4) react completely with I(2). calculate volume of ...

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  12. The number of oxygen atoms in borax which do not from ppi-ppi back bon...

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  13. How many compounds show amphoteric nature amongst following B(2)O(3)...

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  14. How many compounds form acidic solution when dissolved in water H(3)...

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  15. B(10)C(2)H(12) is isostructural & isoelectronic with borate ion of for...

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  16. No of compounds producing gas on hydrolysis (with H(2)O ) is Al(4)C(...

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  17. How many of the given statements are true for potash alum. (1) it i...

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  18. Sum of the number of oxygen shared in between two silicon atoms in Si(...

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  19. In benitonite (BaTiSi(3)O(9)) number of O atoms shared persilicate tet...

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  20. the overall charge present on the cyclic silicate anion [Si(6)O(18)]^(...

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