BY CONTROLLED OXIDATION:

CHEMICAL REACTIONS- COMBUSTION+CONTROLLED OXIDATION+ISOMERISATION

An orgnic compound (A) contains 79.25% C, 5.66% H, and 15.09% O. It has a vapour density of 53 and reduces the Tollens reagent. Action of NaOH on (A) produces (B) and (C ). (B) on controlled oxidation gives (A) which on further oxidation produces (C ). (C ) on distillation with PCl_(5) gives (D). (D) reacts with aq. NH_(3) giving (E ) which reacts with NaOH and Br_(2) forming (F). The latter on reaction which hypo-phoshorus acid yield (H). Identify the compounds (A) to (H).

Method Of Preparations|Question|Kolbe's Electrolytic Method|Physical Properties|Chemical Properties|Halogenation|Mechanism|Combustion|Controlled Oxidation|Isomerisation|Aromatization|Reaction With Steam|Pyrolysis|Structure Of Double Bond|Preparation Of Alkenes|Summary

Read the passage given below and answer the following questions: Aldehydes, ketones and carboxylic acids are few of the major classes of organic compounds containing carbonyl group. Aldehydes are prepared by dehydrogenation or controlled oxidation of primary alcohols and controlled or selective reduction of acyl halides. Ketones are prepared by oxidation of secondary alcohols and hydration of alkynes. Carboxylic acids are prepared by the oxidation of primary alcohols, aldehydes and alkenes by hydrolysis of nitriles and by treatment of Grignard reagents with carbon dioxide. Name the main compounds A and B formed in the following reaction: CH_3CN underset((ii) H_2O^(+) ) overset( (i) CH_3MgBr) to A overset( Zn( Hg) //conc. HCl) to B

Kinetically Controlled Product and Thermodynamically Controlled Product (Addition OF HBr with Conjugated Alkenes)

Babanrao is an organic farmer growing ladyfingers in this field. What are the precautions he will take to control pests in his field ? I. Use of ladybird and dragonflies to control butterfly cartepillars . II. Use of Nucleopolyhedrovirus to control arthropods . III. Use of Bacillus thuringiensis to control butterfly caterpillars . IV. Use of Trichoderma to control arthropods .

Pollution control board in India: