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What is formalin solution ? Give its one...

What is formalin solution ? Give its one use..

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A 40% aqucous solution of formaldehyde is called formalin. It is used to preserving biological specimens and distinfectant.
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ACCURATE PUBLICATION-ALDEHYDES ,KETONES AND CARBOOXALIC ACIDS-CARBOXYLIC ACID (3 MARK QUESTIONS )
  1. Give a chemical test to distinguish between aldehyde and ketone.

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  2. What happens when Formaldehyde is treated with ammonia ?

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  3. What is formalin solution ? Give its one use..

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  4. Two uses of formaldehyde.

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  5. What type of aldehyde and ketones undergo Cannizzaro's reaction ?

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  6. What type of hybridisation is involved for carbon in a carbonyl group?

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  7. The symbol of the elements cobalt , aluminium , helium and sodium resp...

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  8. Carboxylic acid exists as dimers, explain why ?

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  9. Why are the boiling points of carboxylic acids higher than the corresp...

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  10. Carboxylic acids do not give the characteristic reactions of carbonyl ...

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  11. Benzoic acid is stronger acid than acetic acid. Justify.

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  12. Fluoroacetic acid is stronger than chloroacetic acid. Explain why ?

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  13. Why carboxylic acids do not give characteristic reactions of -OH group...

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  14. How will you account for the acidic nature of carboxylic acid ?

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  15. Benzoic acid is stronger acid than acetic acid. Justify.

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  16. How will you account for the acidic nature of carboxylic acid ?

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  17. Why acetic acid is weaker than formic acid ?

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  18. Why chloroacetic acid is stronger acid than acetic acid ?

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  19. Benzoic acid is stronger acid than acetic acid. Justify.

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  20. Why trichloro acetic acid is stronger than acetic acid ?

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