An organic compound A on treatment with ethanol yields a carboxylic acid B and a neutral compound C.On hydrolysis, C produces B and another compound D. D on oxidation produces B, which on heating with Ca `(OH)_2` gives E `(C_3H_6O)` E form 2,4 Dinitrophenyl hydrazone derivatives but does not show Fehling test.

An organic compound (A) on treatment with acetic acid in presence of sulphuric acid pro-duces as ester(B). (A) on mild oxidation gives (C). (C) with 50% KOH followed by acidifica-tion with dill HCI generates (A) and (D). (D) with PCI_5 followed by reaction with ammonia give (E). (E) on dehydration produces HCN-acid. Identify A to E.

An organic compound contains A(C_7H_5N) on hydrolysis with strong aqueous acid gives another compound B which is a monobasic aromatic carboxylic acid. The compound B on treatment with ammonia gives a salt which on heating gives C. The compound C undergoes Hofmann's bromamide reaction to yield aniline. Name A, B and C and write the chemical reactions involved.

An aromatic compound (A) on treatment wth aqueous ammonia and heating forms a compound (B) which on heating with Br_2 and KOH froms a compound (c) of molecular formula C_6H_7N . Write the structures and IUPAC names of compounds.

An organic compound A (C_3H_6O) is resistant to oxidation but forms compound B (C_3H_8O) on reduction. 'B' reacts with HBr to form the compound 'C'. C with Mg forms Grignard reagent 'D' which reacts with 'A' to forms a product which on hydrolysis gives. E. Identify A to E

An organic compound (A) (molecular formula, C_4H_8O_2 ) was hydrolysed with dilute H_2SO_4 to give a carboxylic acid (B) and alcohol (C ). Oxidation of (C ) with chromic acid produced (B). Write possible structures of (A), (B) and (C ) and give their IUPAC name. Write the chemical equations involved in the process.

Two moles of organic compound 'A' on teratment with a strong base give two compounds 'B' and 'C'. Compound 'B' on dehydrogenation with Cu gives 'A' while acidification of 'C' yield carboxylic acid 'D' with molecular formula of CH_2O_2 . Identify the compounds A, B, C and D. Write all chemical reactions involved.

An organic compound 'A' having molecular formula C_6H_6O gives a characteristic colour with aqeuous FeCI_3 solution. When 'A' is treated with CO_2 and NaOH at 400K under pressure 'B' is obtained. The compound B on acidification gives compound C which react with acetyl chloride to form D which is a popular pain killer. Deduce the structure of A, B, C and D.

An optically active amide (A)C_5H_(11)NO on acid hydrolysis gives an acid and NH_3 . When (A) is treated with bromide and alkali a compound is obtained which one treatment with nitrous acid gives an optically active alcohol and nitrogen. The alcohol gives positive iodoform test. What is the structure of A and show the reactions involved.

A blackish brown coloured solid 'A' when fused with alkali metal hydroxides in presence of air, produces a dark green coloured compound 'B' which on electrolytic oxidation in alkaline medium gives a dark purple coloured compound 'C' Identify A, B and C and write the reactions involved.

An organic compound has the molecular formula C_5H_(10)O . The compound does not reduce Tollen's reagent but reacts with Brady's re-agent to give orange precipitate. On vigorous Oxidation, the molecule produces ethanoic acid and propanoic acid. The com-pound also gives iodoform test. Identify the compound and write equations for chemical reactions involved.