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प्रश्न
How would you test for an alcohol?
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उत्तर
Alcohols are slightly acidic in nature and can be detected by their reaction with sodium. When sodium is added to alcohol, sodium alkoxide is formed along with the release of hydrogen gas that burns with a pop sound. This confirms that the compound is an alcohol. Alcohols do not change the colour of the litmus paper.
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संबंधित प्रश्न
Give the structural formula of Ethanol
Fill in the following blank with suitable word:
The next homologue of C2H5OH is ...............
Match the formulae in group A with appropriate names from group B:
Group A: CH3COOH, CH3CHO, CH3OH
Group B: Ethanol, Methanol, Ethanal, Ethanoic acid
Draw the structures for the following compounds of Pentanal
State two used of ethanol (other than as a fuel).
What would be observed on adding a 5% alkaline potassium permanganate solution drop by drop to some warm ethanol in a test-tube? Write the name of the compound formed during the chemical reaction. Also write chemical equation of the reaction which takes place.
Write names and formulae of hydrocarbons containing a single and a double bond (one example for each). Give one characteristic chemical property of each.
Consider the following organic compound:
CH3OH, C2H5OH, CH3COCH3, CH3COOH, C2H5COOH, C4H9COOC2H5, CH4, C2H6, CH3CHO, HCHO
Out of these compound:
Which compound is used to sterilise wounds and syringes?
What is meant by a functional group in carbon compounds?
How is ethane prepared by Wurtz reaction?
Give the necessary conditions and equations of getting ethanol from:
(a) Alkyl halide
(b) An ethene
From the given list, name the compound with –COOH as part of its structure.
Generally _______ is called spirit.
Write the chemical equation for the following:
Oxidation of ethanol
An organic compound ‘A’ is widely used as a preservative and has the molecular formula C2H4O2. This compound reacts with ethanol to form a sweet-smelling compound ‘B’.
Name the process.
How is ethene prepared from ethanol? Give the reaction involved in it.
Give the balanced chemical equation of the following reaction:
Combustion of ethanol.
Give the balanced chemical equation of the following reaction:
Combustion of ethanol.
Give the balanced chemical equation of the following reaction:
Oxidation of ethanol by acidified potassium dichromate.
Give the balanced chemical equation of the following reaction:
Combustion of ethanol.
