Element A burns, in nitrogen to give an ionic compound B. The compound B reacts with 'H2O' to give 'C' and 'D'. A solution of 'C' becomes milky on bubbling 'CO2'. Identify 'A, B, C, D'.

A metallic element A bums In nitrogen gas to form an ionic compound ‘B’ which on treatment with water forms ‘C’ and ‘D’ solution of ‘C’ turns milky on bubbling CO_2 gas through it:- Give equations for the formation of C and D from B.

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.

An organic compound A, C₈H₆ on treatment with dilute sulphuric acid-containing mercuric sulphate gives a compound B , which can also be obtained from a reaction of benzene with an acid chloride in the presence of anhydrous aluminium chloride. The compound B, when treated with Iodine in aqueous KOH, yields C and a yellow compound D. Identify A B C and D with justification.

Compound A is treated with ethanolic NaCN to give the compound C_2H_5CN (B) compound B on reduction gives compound C. identify compounds A and C.

A is a compound of calcium. On heating A a colourless gas B and a resides C are formed. When C is dissolved in water a compound D is obtained. When excess CO_2 is passed through the aqueous solution of D, E is formed. E on gentle heating gives A. Identify A, B, C and E.

Identify the structures A, B, C and D.

Compounds (B) and (C), respectively, are: