Write the formula of the volatile compound formed during the purification of nickel by Mond's process. 

Write the organic compound formed in the following equation .

Write the organic compound formed in the following reaction

Write the organic compound formed in the following reaction.

Write the empirical formula of the compounds having molecular formulae.

Write the formula of a compound where transition metal is in +7 oxidation state.

An element X (2, 8, 2) combines separately with SO_(4)^(2-),PO_(4)^(3-) radicals. (i) Write the formulae of the two compounds so formed. (ii) To which group of the modern periodic table does the element X belong? (iii) Will it form covalent or ionic compound ? Give reasons.

Give the chemical formulae of the stable binary compounds formed by the combination of the following pairs of elements.

Write the equations during the preparation of sodium carbonate by solvay process.

Carbon monoxide forms volatile compound with :