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An aromatic compound 'A' (Molecular form...

An aromatic compound 'A' (Molecular formula `C_(8)H_(8)O`) gives positive 2, 4-DNP test. It gives a yellow precipitate of compound 'B' on treatment with iodine and sodium hydroxide solution. Compound 'A' does not give Tollen's or Fehling's test. On drastic oxidation with potassium permanganate it forms a carboxylic acid 'C (Molecular formula `C_7H_6O_2`), which is also formed along with the yellow compound in the above reaction. Identify A, B and C and write all the reactions involved.

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An aromatic compound A of the molecular formula C_(8)H_(10)O on reaction with iodine and dilute NaOH gives a yellow precipitate . The structure of the compound is expected to be:

An organic compound (A) with molecular formula C_8H_8 O forms an orange red precipitate with 2,4 -DNP reagent and gives yellow precipitate on heating with iodine in the presence of sodium hydroxide . It neither reduces Tollen's reagent or Fehling's solution , nor does it decolourise bromine water or Baeyer's reagent. On drastic oxidation with chromic acid, it gives a carboxylic acid (B) having molecular formulae C_7H_6O_2 . Identify the compound (A) and (B) and explain the reactions involved .

An organic compound A with molecular formula C_(9)H_(10)O gives positive DNP and iodoform tests. It does not reduce. Tollen's reagent or Fehling reagent and does not decolourless bromine water or Bayer's reagent. On drastic oxidation with chronic acid, compound A gives a carboxylic acid having molecular formula C_(7)H_(6)O_(2) . Deduce the structur eof organic compound A and write all the chemical reactions involved.

An organic compound containing (x) with molecular formula C_(8)H_(8)O forms an oragne-red precipitate with 2,- -DNP reagent and gives yellow precipitate on heating with ioxdine in the presence of sodium hydroxide. It neither reduces Tollen's Fehlling's reagent, nor does it decolouries bromine water or Baeyer's reagent. On drastic oxidation with chromic acid, it gives a carboxylic acid (Y) having molcular formula C_(7)H_(6)O_(2) . Identify the compounds X and Y.

U-LIKE SERIES-ALDEHYDES, KETONES AND CARBOXYLIC ACIDS-LONG ANSWER QUESTIONS - I
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  2. Explain the mechanism of nucleophilic addition to a carbonyl group and...

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  3. Write balanced chemical equations for the following reactions : (i) ...

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  4. (a) Write the steps and conditions involved in the following conversio...

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  5. An aliphatic compound (A) with a molecular formula C3H6O reacts with p...

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  6. How would you bring about the following conversions : (i) Propanal t...

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  7. Give reasons for the following : (a) Carboxylic acids do not give ch...

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  8. Draw the structure of a carbonyl group and indicate clearly (i) the ...

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  9. Write chemical tests to distinguish between : (i) Acetaldehyde and A...

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  10. Write reactions and conditions for the following conversions : (i) E...

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  11. How can the following be obtained : 2-butanol from ethanol ? State the...

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  12. Convert : (i) Acetophenone to ethylbenzene (ii) Ethanal to 2-amin...

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  13. An alkene 'A' (Mol. formula C5H10) on ozonolysis gives a mixture of tw...

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  14. When liquid 'A' is treated with a freshly prepared ammoniacal silver n...

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  15. An aromatic compound 'A' (Molecular formula C(8)H(8)O) gives positive ...

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  16. Write down functional isomers of a carbonyl compound with molecular fo...

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  17. Complete the following equations : (i) , (ii) CH(3)CONH(2) + HNO(...

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  18. Predict the products: (i) CH(3)CH(2)OH overset(K(2)Cr(2)O(7))underse...

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  19. Identify compounds (A) - (l) in the following reactions :

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  20. Two moles of organic compound 'A' on treatment with a strong base give...

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