When a mixture of ethanol and methanol is heated in the presence of concentreated `H_2SO_4`, the resulting organic product/ products is/ are

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

Ethanol is heated with excess concentrated H_2SO_4 at 443 K . What is the product formed ?

The formula of four organic compounds are given below : Which of the above compounds when heated at 443 K in the presence of concentrated H_(2)SO_(4) forms ethene as the major product ? What is the role played by concentrated H_(2)SO_(4) in this reaction ? Also ,write the chemical equation involved.

Equimolar quantities of ethanol and methanol are heated with conc. H_(2)SO_(4) . The product formed is

Acetone is distilled with concentrated H_(2)SO_(4) . The resultant product obtained is

When ethylene glycol is heated with oxalic acid in this presence of conc. H_(2)SO_(4) , the product formed is:

When ethylene glycol is heated with oxalic acid in this presence of conc. H_(2)SO_(4) , the product formed is: