A mixture of compounds A and B is passed through a column of `Al_(2)O_(3)` by using alcohol as eluent . Compound A is eluted in preference to compound B. Which of the compounds A or B is more readily adsorbed on the column ?

When acetylene is passed through dil . H_2SO_4 in the presence of HgSo_4 the compound formed is :

A violet compound of manganese 'A' decomposes on heating to liberate oxygen and compounds B and C of manganese are formed. Compound C reacts with KOH in the presence of potassium nitrate to give a compound B. On heating compound C with conc. H_(2)SO_(4) and NaCl, chlorine gas is liberated and compound D of manganese alongwith other products is formed. Identify compounds A to D and also explain the reactions involved.

Which of the following compounds will form silver mirror with [AgNH_3)_2]OH .?

Compound A was prepared by the oxidation of compound B with alkaline KMnO_(4) . Compound A on reduction with lithium aluminium hydride gets converted back to compound B. When compound A is heated with compound B in the presence of H_(2)SO_(4) , it produces fruity smell of compound C. To which family, the compounds A, B and C belongs to?

An ionic compound has a unit cell consisting of A ions at the corners of a cube and B ions on the centres of the faces of the cube. What is the empirical formula of the compound ?