An alcohol (A) on heating with concentrated `H_(2)SO_(4)` gives alkene (B) as major product and (B) can shown the geometrical isomerism . The compound (A) is `:`

Formic acid (HCOOH) on heating with concentrated H_(2)SO_(4) gives

An alcohol X on heating with concentrated H_(2)SO_(4) gives an alkene Y which can show geometrical isomerism . The alcohol X is

An alcohol X on heating with concentrated H_(2)SO_(4) gives an alkene Y which can show geometrical isomerism . The alcohol X is

Ethyl alcohol is heated with concentrated H_(2)SO_(4) at 170^(@)C . The product formed is

Ethanol is heated with concentrated H_(2)SO_(4) . The product formed is

An organic compound A on heating with concentrated H_(2)SO_(4) gave product B and on warming with alkaline KMnO_(4) gave compound C. Compound A on heating with compound C in presence of concentrated H_(2)SO_(4) formed Compound D, which has fruity smell, Identify the compounds A,B,C and D :

Based on the above isomer answer the following (A to F). Which isomers on dehydration with conc. H_(2)SO_(4) give alkene is capable to show geometrical isomerism ?

Ethyl alcohol (in excess) is heated with concentrated H_(2)SO_(4) at 40^(@)C . On distillation, the major product that separates out is

Ethyl alcohol is heated with conc. H_(2)SO_(4) .The product formed is