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What is cross aldol condensation. Give a...

What is cross aldol condensation. Give an example.

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When aldol condensation is carried out between two different aldehydes and/or ketones, it is called cross aldol reaction, example-mixture of ethanal and propanal.
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OSWAAL PUBLICATION-SOLVED PAPER II PUC MARCH-2016 -PART-D
  1. Calculate the packing efficiency in a simple cubic lattice.

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  2. An element crystallizes in fcc lattice. If the edge length of the unit...

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  3. Give reason for the following. Brownian movement of colloidal partic...

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  4. What is peptization ? Give an example.

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  5. Derive an integrated rate equation for the rate constant of a first-or...

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  6. Draw the graph for [R] versus time (t) for a zero order reaction. Give...

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

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  8. What is the effect of the following groups on the acidity of phenol ? ...

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  9. (a) Write the Haworth's structure for lactose. (b) Give an example ...

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  10. Explain S(N) - 1 reaction mechanism.

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  11. Explain Fittig reaction with equation.

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  12. What is cross aldol condensation. Give an example.

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  13. Explain decarboxylation reaction with an example.

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  14. What is the major product of the following reaction ?

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  15. What are condensation polymers? Given an example.

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  16. Write the following: (i) IUPAC name for the monomer of natural rubb...

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  17. Give an example for a co-polymer.

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  18. Explain Hoffmann bromamide degradation for the preparation of methanam...

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  19. Complete the following reactions : (i) (ii) C(6)H(5)NH(2) +NaNO(2...

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  20. Give reason: Ammonia is more basic than aniline.

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