Fill in the blanks :
__________ is the sodium or potassium salt of some organic acids which are prepared from the reaction of coustic soda or caustic potash with _________ or oils.

Why is sodium hydroxide also called caustic soda? How would you prepare sodium hydroxide from sodium chloride?

Write the reactions for: preparation of H_(2)O_(2) from two sodium salts and

Which organic gas is liberated at the anode when a concentrated aqueous solution of sodium salt of fumaric acid is electrolysed ?

An organic compound [A] C_(8)H_(6) on reacting with dilute sulphuric acid containing mercuric sulphate gives a compound [B] which can also be obtained from a reaction of bezene with acid chloride in the presence of anhydrous AlCl_(3) . The compound [B] when treated with iodine and aqueous NaOH yields [C] and a yellow compound [D]. Identify [A],[B],[C] and [D] with justification. Show how [B] is formed from [A].

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].

Anorganic compound with molecular formula C_9H_10O , forms 2,4-DNP darivative, reduces Tollen's reagent and undergoes Cannizzaro reaction. On vigorous oxidation it gives a dicarboxylic acid which is used in the preparation of terylene. Identify the organic compound

An organic compound [A], whose molecular formula is C_(3)H_(6)O , gives iodoform reaction and forms compound [B]. Compound [B], when heated with silver powder, converts into compound [C}. Compound [C] reacts with dil. Sulphuric acid and mercuric sulphate to obtain compound [D], which gives Aldol condensation reaction. Write down the names of all compounds from [A] to [D] and also write the chemical equations for each step.