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The symbol of the elements cobalt , alum...

The symbol of the elements cobalt , aluminium , helium and sodium respectively written by the student as follows . Which symbol is the correct one.

A

a. CO

B

b. AL

C

c. He

D

d. So

Text Solution

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Carbonyl compounds contain group and alkenes contain group. (i) On reduction Carbonyl compounds first give alcohols white alkenes give alkanes. (ii) Halogens, halogen acids and H2SO4 undergo addition reactions with alkenes but not with carbonyl compounds.
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ACCURATE PUBLICATION-ALDEHYDES ,KETONES AND CARBOOXALIC ACIDS-CARBOXYLIC ACID (3 MARK QUESTIONS )
  1. What type of aldehyde and ketones undergo Cannizzaro's reaction ?

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

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

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  4. Carboxylic acid exists as dimers, explain why ?

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

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

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

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

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

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

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

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

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  13. Why acetic acid is weaker than formic acid ?

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

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

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

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  17. Chloroacetic acid has lower pK(alpha) value than acetic acid. Explain,

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  18. Why dichloroacetic acid is stronger than monochloroacetic acid ?

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  19. Carboxylic acid exists as dimers, explain why ?

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  20. Most aromatic acids are solids while acetic acid and others of their s...

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