Advertisements
Advertisements
Question
How would you distinguish experimentally between an alcohol and a carboxylic acid?
Advertisements
Solution
- Dip a strip of blue litmus into both alcohol and carboxylic acid placed in separate glass tubes. The litmus will turn red in the tube with carboxylic acid, while there will be no color change in the tube with alcohol.
- Add a small amount of solid sodium bicarbonate (NaHCO₃) to both tubes. You will observe rapid effervescence and bubbling due to the release of CO₂ in the tube with carboxylic acid, whereas no reaction will occur in the tube with alcohol.
APPEARS IN
RELATED QUESTIONS
Give the structural formula of ethanol.
Give the structural formula of Ethanol
Match the formulae in group A with appropriate names from group B:
Group A: CH3COOH, CH3CHO, CH3OH
Group B: Ethanol, Methanol, Ethanal, Ethanoic acid
What is meant by a functional group? Explain with an example.
What happens when (give chemical equation):
Sodium reacts with ethanol (ethyl alcohol)
Explain why, methanol is much more dangerous to drink than ethanol.
When ethanol reacts with sodium metal, it forms two products. These products are:
(a) sodium ethanaoate and oxygen
(b) sodium ethanaoate and hydrogen
(c) sodium ethoxide and oxygen
(d) sodium ethoxide and hydrogen
One of the following substances is not added to make denatured alcohol. This is:
(a) methyl alcohol
(b) copper sulphate
(c) chloroform
(d) pyridine
How is the methylated spirit obtained?
Give the necessary conditions and equations of getting ethanol from:
(a) Alkyl halide
(b) An ethene
Addition reactions and substitution reactions are types of organic reactions.Which type of reaction is shown by?
Ethene?
Convert ethanol into ethene using a solid dehydrating agent. Give only a balanced equation.
Convert ethanol into ethene using hot conc. H2SO4. Give only a balanced equation.
Write the structural formulae of the following compound:
Ethane
Choose the correct alternative and rewrite the following:
To observe the hydro and clearly, Raju should see it first under the low power lens and then under the high power lens in order to see _____________
Why is the conversion of ethanol to ethanoic acid considered an oxidation reaction? Write the oxidising agent used in the reaction involved.
C2H5OH + 3O2 → 2CO2 + 3H2O is a ______
Draw the electron dot structure of ethyne and also draw its structural formula
How would you bring about the following conversions? Name the process and write the reaction involved.
Give the balanced chemical equation of the following reaction:
Combustion of ethanol.
