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Give reasons of the following In dibor...

Give reasons of the following
In diborane, two B - H - B bonds are different from common covalent bonds.

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CBSE COMPLEMENTARY MATERIAL-P-BLOCK ELEMENTS-3-MARK QUESTION
  1. Give reasons of the following In diborane, two B - H - B bonds are d...

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  2. A certain salt X gives the following results: Its aqueous solution i...

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  3. A certain salt X gives the following results: It swells up to a gla...

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  4. A certain salt X gives the following results: When conc. H(2)SO(4) ...

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  5. Write balanced equations for: B(2)H(6)+H(2)Oto

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  6. Write balanced equations for: Al+NaOHto

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  7. Write balanced equations for: NaH+B(2)H(6)to

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  8. List two important properties in which boron differs from the rest of ...

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  9. What are electron-deficient compounds? Are BCl(3) and SiCl(4) electron...

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  10. Select the member (s) of group 14 that : Forms the most acidic dioxi...

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  11. Select the member (s) of group 14 that : Is commonly found in + 2 o...

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  12. Select the member (s) of group 14 that : Used as semiconductror.

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  13. What are allotropes ? Sketch the structure of two allotropes of carbon...

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  14. When carbon dioxide is passed through lime water, the solution turns m...

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

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  16. Give suitable reasons for the following : Lead (IV) Chloride is hig...

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  17. Write the resonance structure of CO(3)^(2-) and HCO(3)^(ө).

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  18. Thermodynamically the most stable form of carbon is

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  19. Explain why is there a phenomenal decrease in ionisation enthalpy from...

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  20. Mention an industrial application of silicones.

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