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What are boranes ?...

What are boranes ?

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Stable covalent boron hydrides such as `B_2H_6, B_4H_10, B_5H_9` etc. in analogy with alkanes are called boranes.
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CHHAYA PUBLICATION-SOME p-BLOCK ELEMENTS-QUESTION-ANSWER ZONE FOR BOARD EXAMINATION (VERY SHORT ANSWER TYPE)
  1. Mention the states of hybridisation of boron in B2H6 and in BF3.

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  2. Crystalline boron is an extremely hard solid - why ?

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  3. What are boranes ?

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  4. Boron shows anomalous behaviour and differs from the rest the members...

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  5. Which two out of five members of carbon family are distinctly metals ?

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  6. Which one out of catechol, resorcinol and quinol can be used to titrat...

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  7. Carbon forms covalent compounds but lead forms ionic compounds-Why?

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  8. Which element of carbon family has no d-orbital in its valence shell?

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  9. Among the group-14 elements which is the most electronegative one?

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  10. Which member of carbon famil y has the lowest melting point?

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  11. Which is the more stable oxidation state of Pb ?

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  12. Out of diamond & graphite which is a good conductor of electricity and...

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  13. Which member of carbon family has the highest value of first ionisatio...

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  14. Which member of carbon family has the maximum tendency to exhibit cate...

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  15. What are the structural units of ice and dry ice?

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  16. Among the group-14 elements which one exhibits p pi- p pi multiple bon...

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  17. Give reasons for which carbon differs from the rest of the members of ...

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  18. What is the basic building unit of all silicates?

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  19. What happens when cone. H2SO4 is dropped on sugar?

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  20. What is buckminsterfullerene ?

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