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What is vulcanisation of rubber?...

What is vulcanisation of rubber?

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The process of heating a mixture of Raw rubber with elemental sulphur and appropriate additive at temperature 373 - 415 K is called vulcanisation.
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(a) Name the monomers used in the preparation of Nylon 6,6. (b) Explain Vulcanization of rubber. c) Give an example for biodegradable polymer.

Name the element used for vulcanization of natural rubber.

(a) (i) What are condensation polymers? Give an example. (ii) Give the IUPAC of the monomer of natural rubber. (b) What are Biodegradable polymers? Give an example.

i) Name the catalyst used in the manufacture of high density polythene. ii) What is the configuration at the carbon - carbon double bonds in natural rubber ?

SUNSTAR PUBLICATION-II PUC CHEMISTRY (SUPPLEMENTARY EXAM QUESTION PAPER JULY - 2016)-PART - D
  1. Write the equations of anodic and cathodic reactions occur during rust...

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  2. Derive an integrated rate equation for the rate constant of a zero ord...

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  3. Write the energy distribution curve showing temperature dependence of ...

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  4. Mention any one application of adsorption.

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  5. i) What is 'Tyndall effect'? ii) In the coagulation of negative sol,...

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  6. What is heterogeneous catalysis? Give an example.

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  7. i) Explain S(N)2 mechanism taking an example of chloromethane. ii) W...

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  8. i) CH(3)-Br+AgFrarr CH(4)F+AgBr Name the above reaction. ii) P - d...

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  9. i) Identifiy 'A' and 'B' in the following equations. CH(3)-CH=CH(2) ...

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  10. Explain Williamson's ether synthesis.

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  11. i) How does benzaldehyde reacts with acetophenone in presence of a dil...

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  12. Among formic acid and acetic acid, which is more acidic ? Give reason...

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  13. i) Explain the reduction of nitrocompounds to amines with an examples....

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  14. How is aniline converted in phenyl isocyanide ? Write the equation.

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  15. Write Haworth structure for maltose.

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  16. What is nucleoside?

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  17. What are fibrous proteins Give an example .

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  18. Name the monomers usedl in the manufacture of Nylon-6, 6.

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  19. What is vulcanisation of rubber?

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  20. Give an example for biodegradable polymer.

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