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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

Which of the following functional group numbered not named as suffixed in IUPAC (1) Alcohol (2) Aldehyde (3) ketone (4) ether (5) carboxylic acid (6) Acid chloride (7) Thio alcohol (8) amine

Oxidation of alkenes by cleavage with the acidic or alkaline KmNO_(4) of acidic K_(2)Cr_(2)O_(7) at higher temperature yields products depending upon the nature of alkene. A hot solultion of KMnO_(4) is a strong oxidising agent which gives only ketones and carboxylic acids and not aldehydes (as they cannot be isolated). Oxidation of alkenes with OsO_(4) followed by alcoholic NaHSO_(3) or Na_(2)SO_(3) yeilds glycols. Answer the following questions: Which of the following alkenes on oxidation with hot KMnO_(4) gives cyclopentanone?