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What are allotropes? Sketch the structur...

What are allotropes? Sketch the structure of two allotropes of carbon namely diamond and graphite.

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ICSE-SOME P-BLOCK ELEMENTS -NCERT TEXTBOOK EXERCISES (With Hints and Solutions)
  1. Explain why is there a phenomenal decrease in ionization enthalpy from...

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  2. The reason behind the lower atomic radius of Ga as compared to Al is

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

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  4. Classify following oxides as neutral, acidic, basic or amphoteric: ...

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  5. Write suitable chemical equations to show the nature of Calcium oxide ...

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  6. In some of the reactions thallium resembles aluminium, whereas in othe...

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  7. When metal X is treated with sodium hydroxide, a white precipitate (A)...

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  8. What do you understand by (a) inert pair effect (b) allotropy and (c...

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  9. What do you understand by allotropy ? Name the allotropic forms of ca...

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  10. What do you understand by catenation.

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  11. A certain salt (X) gives the following tests : (a) Its aqueous solut...

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  12. Write balanced equation for BF3 + LiH to

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  13. Write balanced equation for B2 H6 + H2 O to

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  14. Write balanced equation for NaH + B2 H6 to

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  15. Write balanced equation for H3 BO3 overset(Delta)to

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  16. Complete and balanced the equations: Al + NaOH + H(2)O rarr +

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  17. Write balanced equation for B2 H6 + NH3 to

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  18. Give one method for industrial preparation and one for laboratory prep...

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  19. An aqueous solution of borax is

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  20. Boric acid is polymeric due to (a) its acidic nature , (b) the pre...

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