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Why is oxygen a gas sulphur a solid at w...

Why is oxygen a gas sulphur a solid at while room temperature ?

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USHA PUBLICATION-POLYMERS AND CHEMISTRY IN EVERYDAY LIFE -EXERCISE
  1. Give one test to distinguish between acetaldehyde and acetone.

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  2. Give comparison between Schottky defect and Frenkel defect.

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  3. Why is oxygen a gas sulphur a solid at while room temperature ?

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  4. What do you mean by autoreduction in metallurgy?

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  5. What are t(2g) and eg orbitals ?

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  6. Why is aniline a weaker base then ethyl amine?

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  7. What type of sol is formed when AgNO3solution is added to KI solution ...

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  8. Do the conversion : Nitrobenzene rarr benzoic acid.

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  9. Write four characteristic properties of noble gases.

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  10. What is Finkelstein reaction ?

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  11. Show that for a 1 st order reaction t(99.9%)=3xxt(90%)

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  12. What do you mean by diazotisation and coupling reaction ?

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  13. Write short note on Iodoform reaction.

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  14. Discuss the trends in properties of hydrides of Gr-16 family (any thre...

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  15. How can you prepare acetic acid from Methyl cyanide

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

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  17. How does acetic acid react with Ethyl alcohol

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  18. Acetic acid on heating with P2O5 produces –

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  19. How can acetaldehyde be prepared from actyl chloride and acetylene?

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  20. How can acetaldehyde be prepared from actyl chloride and acetylene?

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