Certain ketone A (capable of showing iodoform test positive) on reduction gives B. B on acidic dehydration at 443 K give C. C on reductive ozonolysis gives only MeCHO. A and C in the above sequence are respectively

Hot and concentrated solution of Borax is treated with HCl to give A and B . B on strong heating undergoes dehydration to give C .Then C is.

A ketone (A) give iodoform on reacting with iodine and sodium hydroxide. (A) on reduction gives (B) which on heating with sulpphuric acid gives (C) . (C) on ozonolysis acetaldehyde and acetone. Identify (A), (B) (C)

Hot and concentrated solution of borax is treated with hydrochloric acid to give A and B. "B" on strong heating undergoes dehydration to give C. then "C" is

A compound (A) with molecular formula C_4H_10O on oxidation forms compound (B). The compound (B) gives positive iodoform test and on reaction with CH_3MgBr followed by hydrolysis gives (C). Identify . A, B and C and give the sequence of reactions.

A compóund A with molecular formula C_4 H_10O . on oxidation forms compound B. The compound B gives positive iodoform test. Compound B on reaction with CH_3 MgBr followed:by hydrolysis gives: C. Identify A, Band C and give the sequence of reactions.

a) Give the structural formulae of the alkene (C_(8)H_(16)) which on reductive ozonolysis gives butan-2-one. b) Write the structure of that compound which on reductive ozonolysis gives propane-1,3-dial. c) Write the products of the reductive ozonlysis of mesitylene with i) (Zn//CH_(3)COOH) ii) NaBH_(4) or LAH. d) Give the structural formulae of the alkene which on reductive ozonolysis gives a mixture of 2-methyl-butanal and pentan-2-one.

Alkenes undergo a variety of oxidation reactions. With cold and neutral or alkaline KMnO_(4) , alkenes are oxidised to give vicinal diols. Oxidation with hot KMnO_(4) undergoes cleavage of C=C bond leading to the formation of carboxylic acids, ketones and carbon dioxide depending on the nature ofalkene. Reductive ozonolysis of alkenes give aldehydes or ketones. Reductive ozonolysis of alkene 'A' gives propanone. The alkene 'A' is