Question

Ankit's teacher taught him that consumption of small quantities of dilute ethanol
causes drunkenness. Intake of even a small quantity of pure ethanol can be lethal.
Also, long-term consumption of alcohols lead to many health problems.
(i) What is ethanol?
(ii) State its two properties.
(iii) What happens, when it is heated with excess of conc. H2SO4 at 443 K?
(iv) What role does conc. H SO 4 play in this reaction?
(v) Write the chemical equation of the reaction involved and the structural formula of
the main product formed.
Or
A sweet smelling organic compound (X) having the molecular formula C H1002, on
treatment with sodium hydroxide (NaOH) gives a sodium salt of a carboxylic acid,
which upon acidification gives 2-methyl propanoic acid and an alcohol (Y) Intake nt
alcohol (Yin m
l

Answer 1

Answer:

i.) Ethanol is the IUPAC name of alcohol

ii.) -It is liquid at room temperature

-Boiling point: 78.5°C

- Freezing point: -114°C

iii.) When Ethanol is heated with excess concentrated H2SO4 at 443K it gets dehydrate and forms Ethene(C2H4)

iv.) The role of H2SO4 in the reaction is that it acts as dehydrating agent.

v.) C2H5OH------------(concentrated H2SO4 at 443K)---- C2H4 + H2O

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