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Explain the preparation of Nylon-6, 6 wi...

Explain the preparation of Nylon-6, 6 with equation.

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Preparation of nylon 6,6: it is prepared by condensation polymerisation and hexamethylene dimine with adipic acid under high pressure at high temperature.
`nHOOC-(CH_(2))_(4)-COOH+nH_(2)N-(CH_(2))_(6)-NH_(2) underset("high pressure")overset(553)to [-overset(H)overset(|)(N)-(CH_(2))_(6)-overset(H)overset(|)(N)-overset(O)overset(||)(C)-(CH_(2))_(4)-overset(O)overset(||)(C)-]_(n)`.
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SUBHASH PUBLICATION-ANNUAL EXAMINATION QUESTION PAPER MARCH 2018-PART-D
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  2. write any two differences between lyophilic and lyophobic colloids .

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  3. What is heterogeneous catalysis ? Give an example.

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  7. Write the mechanism of acid catalysed dehydration of ethanol to ethene...

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  8. Between phenol and alcohol which is more acidic ? Why ?

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  9. Explain Rosenmund reduction with equation.

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  10. How does propanone (CH(3)COCH(3)) reacts with hydrazine? Give equatio...

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  11. Name an oxidising agent used in the Etard's reaction

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  12. Explain carbyl amine reaction with equation.

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  13. How does nitrobenzene is reduced to aniline ? Give equation.

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  14. Write the IUPAC name of C(6)H(5)-underset(CH(3))underset( "| ...

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  17. Name the nitrogenous base present in RNA but not in DNA.

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  18. Explain the preparation of Nylon-6, 6 with equation.

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  19. What are thermoplastic polymers? Give an example.

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  20. Write the structure of isoprene (2-methyl -1,3-butadiene).

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