Class-X
Sub-Chemistry
1)Explain the giving reaction with the example.
a)Hydrogenation reaction
b)Exterification reaction
c)Saponification reaction
2)Explain the cleaning action of soaps.
3)A compound X is formed by the reaction of a comboxyllic acid C2H4O2 and an alcohol in
presence of a few drops of conc.H2So4.The alcohol on oxidation with alkaline KMNo4 followed
by acidification gives the same carboxylic acid as used in their reaction. Give the names and
structure of
a)Carboxyllic acid
b)Alcohol
c)Compound X
Write the reaction also.
4)An organic acid ‘X’ is a liquid which ofter freezer during winter time in cold countries has the
molecular formula C2H4O2. On warm it with ethanol in the presence of few drops of
Con.H2So4 a compound ‘Y’ with a sweet smell is formed.
a)Identify X and Y
b)Write reactions also.
Project
Take five samples of commercial soaps determine their foaming capacities.
(1 g soap in 100ml water. Note down time needed for , froth to disappear.)