Cyclobutyl bromide on treatment with magnesium in dry ether forms an organometallic A. The organo-metallic reacts with ethanal to give an alcohol B after mild acidification. Prolonged treatment of alcohol B with an equivalent amount of HBr gives 1-bromo-1-methyl cyclopentane(C). With the structures of A, B and explain how C is obtained from B.

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 watr gives back B. identify A, B and C and give the reacitons involved.

An alkali metal A gives a compound B 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.

A given nitrogen-containing aromatic compound ‘A’ reacts with Sn/HCl, followed by HNO_2 to give an unstable compound '‘B'. 'B', on treatment with phenol, forms a beautiful coloured compound 'C' with the molecular formula C_12H_10N_2O . The structure of compound 'A' is

An optically inactive compound (A) having molecular formula C_4H_11N on treatment with HNO_2 gave an alcohol (B). (B) on heating at 440 K gave an alkene (C). (C) on treatment with HBr gave an optically active compound (D)having the molecular formula C_4H_9Br . Identify A, B, C and D and write down their structural formulae. Also write equations involved.

A farmer harvests his crop and expresses his harvest in three different ways: (a) I have harvested 10 quintals of wheat. (b)1 have harvested 10 quintals of wheat today in one acre of land. (c) I have harvested 10 quintals of wheat in one acre of land after 6 months from sowing. Do the above statements mean one and the same thing. If your answer is yes, give reasons. And if your answer is 'no' explain the meaning of each expression.

Based on the following information arrange four metals A,B,C and D in order of decreasing ability to act as reducing agents : (I) Only A,B, and C react with 1M HCl to give H_(2)(g) (II) When C is added to solutions of the other metal ions, metallic B and D are formed (III) Metal C dows not reduced A^(n+)

A hydrocarbon ‘A’ (C_4H_8) is added with HBr in accordance with Markovnikov’s rule to give compound ‘B’ which on hydrolysis with aqueous alkali forms tertiary alcohol ‘C’ (C_4H_10O) . Identify A, B and C.

Let x = (a,b,c) and Y = (0,1,2,3,4,5), define a one-one function from X to Y. does there exist an onto function form X to Y? If not, give reason.