Ethanol or Ethyl Alcohol (C₂H₅OH)

What will you observe when you drop a small piece of sodium into ethanol? Name the gas evolved. How will you test this gas? Write the chemical equation of the reaction taking place.

How would you distinguish experimentally between an alcohol and a carboxylic acid on the basis of a chemical property?

An organic compound 'A' is an essential constituent of wine and beer. Oxidation of 'A' yields an organic acid 'B' which is present in vinegar. Name the compounds 'A' and 'B' and write their structural formulae. What happens when A and B react in the presence of an acid catalyst? Write the chemical equation for the reaction.

A compound 'X' is formed by the reaction of carboxylic acid ${\mathrm{C}}_2{\mathrm{H}}_2{\mathrm{O}}_4$ and an alcohol in the presence of conc. ${\mathrm{H}}_2{\mathrm{SO}}_4$. The alcohol on treatment with alkaline${\mathrm{KMnO}}_4$ gives the same carboxylic acid used in the reaction. Give the names and structures of carboxylic acid and alcohol. Write the reaction involving formation of X.

Give a chemical test to distinguish between ethanol and ethanoic acid

A neutral organic compound A of molecular formula ${\mathrm{C}}_2{\mathrm{H}}_6\mathrm{O}$ on heating with excess of conc. ${\mathrm{H}}_2{\mathrm{SO}}_4$ gives compound B of molecular formula ${\mathrm{C}}_2{\mathrm{H}}_4$. Compound B on reduction gives compound C of molecular formula ${\mathrm{C}}_2{\mathrm{H}}_6$.
(a) Name A, B and C.
(b) Write chemical equation for the conversion of A to B.
(c) What is the role of conc. ${\mathrm{H}}_2{\mathrm{SO}}_4$ in the above equation.

Write the name and molecular formula of an organic compound having its name suffixed with '-ol' and having two carbon atoms in the molecule. With the help of a balanced chemical equation indicate what happens when it is heated with excess of conc. ${\mathrm{H}}_2{\mathrm{SO}}_4$.

Why is conversion of ethanol to ethanoic acid considered an oxidation reaction?

Write a chemical equation for the reaction of a dry piece of sodium metal on ethyl alcohol.

Write the electron dot structures of (i) ${\mathrm{C}}_2{\mathrm{H}}_4$ (ii) ${\mathrm{C}}_2{\mathrm{H}}_5\mathrm{OH}$.

Which organic compound is added to a small amount of ethanol in order to make it unfit for drinking purposes? What is the name of the mixture formed?