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Write the formula of following ore: baux...

Write the formula of following ore: bauxite

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`Al_2O_3.2 H_2O`
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CHHAYA PUBLICATION-SOME p-BLOCK ELEMENTS-SOLVED WBCHSE SCANNER
  1. What is producer gas? Write down the reactions for the production of t...

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  2. How can you separate CO from a mixture of CO and CO2?

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  3. Write the formula of following ore: bauxite

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  4. Mention the use of Borax.

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  5. Anhydrous aluminium chloride cannot be prepared by heating hydrated al...

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  6. A white precipitate is formed when small amount of a gas is passed thr...

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  7. Name the chemicals required for preparation of CO in the laboratory. G...

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  8. Write the chemical equation for the manufacture of urea.

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  9. Write the balanced equation(s) for the reaction when excess CO2 is pas...

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  10. What is dry ice?

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  11. How is producer gas manufactured?

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  12. What is active charcoal? Mention one of its uses.

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  13. Which one is the hardest allotrope of carbon? Answer with reason.

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  14. Why PbO2 is oxidising?

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  15. Explain why TlCl is known but Al Cl is not known.

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  16. Which of the following is thermodynamically most stable form of carbon...

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  17. PbCl4 is less stable than SnCl4 while PbCl2 is more stable than SnCl2....

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  18. Explain why C Cl4 is not hydrolysed while SiCl4 is hydrolysed.

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  19. What happens when borax is heated strongly?

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  20. Why are the dihalides of carbon unstable but the dihalides of tin and ...

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