1.organic compound A, B,C, D was given A and B each decolorized bromine water. but only sample B reacted with ammonica silver nitrate to give white precipitate. sample D reacted sodiumtrioxocarbonate(iv) to librate carbon(iv)oxide. when heat was applied to a mixture of sample C and D in a test tube and a drop of concentrated tetraoxosulphate(vi) was added a product with a fruity smell was formed. I. What is the family of the organic samples given II. State why sample A and B reacted with tetrachloro methane III. State the name of the reaction between C & D 2.what is structural, geometric and optical isomerism 3.what is bio gas?