An organic compound A contains C= 68.85%, H=4.9% and reacts with `NH_(2)OH`. On treatment with NaOH it forms the compound B and C. The compound B is soluble in HCl and can be oxidized to compound C with `alk.KMnO_(4)`. The compound C on treatment with conc. HCl forms an acid D, which on heating with alkali gives phenol. Identify ABCD.

An organic compoud [A] which has characteristic odour on treatment with NaOH forms two compounds [B] and [C]. Compounds [B] has the molecule formula C_(7)H_(8)O . Which on oxidation gives back compound [A]-The compound [C] is the sodium salt of an acid [C]. When [C] is heated with sodalime, it yield an aromatic hydrocarbon [D]. Deduce the structures of [A], [B], [C] and [D].

An organic compound with 68.9 % of C and 4.92 % of H, is aromatic and gives CO_(2) with NaHCO_(3) . The organic compound is

An element A reacts with water to form a compound B which is used in white washing. The compound B on heating forms an oxide C which on treatment with water gives back B. Identify A, B and C and give the reactions involved.

An organic compound (A) (C_(6)H_(10)O) on reaction with CH_(3)MgBr followed by acid treatment gives compound (B). The compound (B) on ozonolysis gives compound (C ), which in the presence of a base gives 1-acetyl cyclopentene (D). The compound (B) on reaction with HBr gives compound (E ). Write the structures of (A), (B), (C ), (D), and (E ). Show how (D) is formed from (C ).

A compound (A) of boron react with NMe_(3) to give an adduct (B) which in hydrolysis gives a compound (C) and hydrogen gas. Compound (C) is an acid. Indenfity the compounds A,B and C. Give the reactions involved.

An alkali metal A gives a compound B (molecular mass = 40) on reacting with water. The compound B gives a soluble compound C on treatment with aluminium oxide. Identify A, B and C and give the reactions involved.

An organic compound A (C_(2)H_(6)O) reacts with sodium to form a compound B with the evolution of H_(2) and gives a yellow compound C on reacting with iodine and NaOH. When heated with conc. H_(2)SO_(4) at 413 K, it gives a compound D (C_(4)H_(10)O) which on reaction wiht conc. HI at 373 K gives compound E. The compound D is also obtained when B is heated with E. Idntify the compounds A,B,C,D and E write the equations for the reaction involved.

Compound (A)(C_(12)H_(16)) on oxidation with acidic KMnO_(4) solution gives acetone and . Identify compound (A) .

Deduct the structural formul of a compound (A) (C_(10)H_(16)) the gives (B) as the only compound on oxidation with acidic KMnO_(4) .