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Explain what are ionic and covalent soli...

Explain what are ionic and covalent solids.Give one example of each.

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USHA PUBLICATION-PREVIOUS YEAR QUESTION 2020-PREVIOUS YEAR QUESTION
  1. How does Schottky defect arise ? In which type of ionic compounds does...

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  2. What happens when yellow phosphorus is heated with dilute NaOH solutio...

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  3. Explain what are ionic and covalent solids.Give one example of each.

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  4. What is the action of chlorine with (i) cold and dilute NaOH and (ii) ...

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  5. Discuss Reimer-Tiemann reaction.

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  6. Discuss the struchure of [Co(NH3)6]^(3+) ion on the basis of valence b...

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  7. Elucidate the differences between soaps and detergents.

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  8. Answer any seven questions of the following Discuss van Arkel Boer m...

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  9. The rate constants ofa reaction at 500 K and 700 K are 0.025 sec^-1 an...

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  10. Write a note on hydrogen-oxygen fuel cell.

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  11. What do you mean by biodegradale and non biodegradable polymers ? Give...

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  12. An organic compound having molecular formula C3H7Br on treatment with ...

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  13. State Raoult's law. How is the molecular mass of a solute determined f...

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  14. A solution contains 72% water d 28% methyl alcohol. Calculate the mole...

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  15. How is acetic acid prepared from methyl magnesium bromide ?

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  16. An acid is (i) reduced by lithium aluminium hydride (ii) treated with ...

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  17. Name four factors affccting adsorption gases by solids.

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  18. What are enzyme catalysts ? Give a reaction involving an enzyme cataly...

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  19. What are oil in water and water in oil type of emulsions ? Give one ex...

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  20. Starting from nitrobenzene how will you prepare benzene diazonium chlo...

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