An organic compound `(A)` `C_(6)H_(12)O_(3)` on treatment with concentrated `H_(2)SO_(4)` gives `CO`, `H_(2)O` and `(B)`. Compound `(B)` can be prepared by passing vapours of 1-pentanol Over heated copper at 570 K. Compound `(A)` on heating gives `(C)`, `C_(12)H_(20)O_(4)`. Give the structures of `(A)` to `( C)` with proper reasoning.

Oxidation of anline with K_(2) Cr_(2) O_(7) // H_(2)SO_(4) gives

Aniline is heated with K_(2)Cr_(2)O_(7) and H_(2)SO_(4) . The product is

An organic compound A on heating with dilute H_(2)SO_(4) at 75^(@)C in presence of HgSO_(4) followed by oxidation of the product formed gives acid. The compound A is

The aqueous solution of a nitrogen and chlorine containing organic compound (A) is acidic to litmus. (A) on treatment with aqueous NaOH, it gives a compound (B) containing nitrogen, but not chlorine. Compound (B) on treatment with C_6 H_5SO_2 Cl in the presence of NaOH gives an insoluble product (C) C13H13NO2 S. Give the structures of (A) and (B).

Paragraph An organic compound A(C_(9)H_(6)O_(3)) does not react with aqueous solution of NaHCO_(3) as well as does not change the colour of litmus paper. Aon acid hydrolysis gives B(C_(9) H_(8)O_(4)) as major product whereas A on treatment with one equivalent of methanol in acidic medium gives C(C_(10)H_(10)O_(4)) as the major product (other minor isomer of C is also formed). B on heating with sodalime gives toluene. Answer the following questions based on the above information. The most likely structure of B is

Paragraph An organic compound A(C_(9)H_(6)O_(3)) does not react with aqueous solution of NaHCO_(3) as well as does not change the colour of litmus paper. Aon acid hydrolysis gives B(C_(9) H_(8)O_(4)) as major product whereas A on treatment with one equivalent of methanol in acidic medium gives C(C_(10)H_(10)O_(4)) as the major product (other minor isomer of C is also formed). B on heating with sodalime gives toluene. Answer the following questions based on the above information. The structure of product C is

An organic compound with molecular formula C_(6)H_(12) upon ozonolysis give only acetone as the product . The compound is