Advertisements
Advertisements
प्रश्न
State how the following conversions can be carried out:
Ethyl alcohol to Ethane
Advertisements
उत्तर
When concentrated sulphuric acid is added to ethyl alcohol, it causes dehydration to give ethene. Ethene reacts with hydrozen in presence of Ni to give ethane.
\[\ce{C2H5OH ->[Conc.H2SO4][170°] CH2 = CH2 + H2O}\]
\[\ce{CH2 = CH2 + H2 ->[Ni][300°C] CH3 - CH3}\]
APPEARS IN
संबंधित प्रश्न
A student puts a drop of reaction mixture of a saponification reaction first a blue litmus paper and then on a red litmus paper. He may observe that:
(a) There is no change in the blue litmus paper and the red litmus paper turns white.
(b) There is no change in the red litmus paper and the blue litmus paper turns red.
(c) There is no change in the blue litmus paper and the red litmus paper turns blue.
(d) No change in colour is observed in both the litmus papers
Consider the following comments about saponification reactions:
I. Heat is evolved in these reactions.
II. For quick precipitation of soap, sodium chloride is added to the reaction mixtures.
III. Saponification reactions are a special kind of neutralisation reactions.
IV. Soaps are basic salts of long-chain fatty acids.
The correct comments are
(a) I, II and III
(b) II, III and IV
(c) I, II and IV
(d) Only I and IV
List two uses of esters.
Give the common name and IUPAC name of C2H5OH.
Name one chemical compound which can be used to distinguish between ethanol and ethanoic acid.
Acetic acid is a typical acid. Write one equation in case of its reactions with a carbonate.
How will you carry out the following conversions?
Ethene to acetic acid
Write an equation showing saponification.
Give the balanced chemical equation of the following reaction:
Neutralization of NaOH with ethanoic acid.
Give the balanced chemical equation of the following reaction:
Neutralization of NaOH with ethanoic acid.
