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प्रश्न
Draw the structures for the following compound:
Butanal
Draw the structural diagram for the following organic compound:
butanal
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उत्तर
\[\begin{array}{cc}
\ce{H}\phantom{....}\ce{H}\phantom{....}\ce{H}\phantom{.....}\\
|\phantom{......}|\phantom{......}|\phantom{.....}\\
\ce{H - C - C - C - CHO}\\
|\phantom{......}|\phantom{......}|\phantom{.....}\\
\ce{H}\phantom{....}\ce{H}\phantom{....}\ce{H}\phantom{.....}\\
\end{array}\]
संबंधित प्रश्न
Write the molecular formula of the 2nd and the 3rd member of the homologous series whose first member is methane.
State one relevant observation for the following
When the gaseous product obtained by dehydration of ethyl alcohol is passed through bromine water.
............ is a functional group of the alcohol.
Fill in the following blank with suitable word.
The functional group present in ethanol is ...............
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.
What happens when ethanol reacts with ethanoic acid in the presence of a little of concentrated sulphuric acid? Write equation of the reaction involved.
What happens when ethanol is oxidised with alkaline potassium permanganate (or acidified potassium dichromate)? Write the equation of the reaction involved.
In a tabular form, differentiate between ethanol and ethanoic acid under the following heads:
(i) Physical state
(ii) Taste
(iii) NaHCO3 test
(iv) Ester test
Write the equations of chlorination of ethane
Give the necessary conditions and equations of getting ethanol from:
(a) Alkyl halide
(b) An ethene
Name the following:
100% ethanol
Ethanol can be converted to ethene which can be changed to ethane.
Choose the correct word or phrase from the options given below to complete the following sentences:
Converting ethanol to ethene requires the use of_________(Concentrated hydrochloric acid, concentrated nitric cid, concentrated sulphuric acid).
Give the structural formula of the following:
Ethanol
From the given list, name the compound with –COOH as part of its structure.
Convert ethanol into ethene using a solid dehydrating agent. Give only a balanced equation.
3 mL of ethanol is taken in a test tube and warmed gently in a water bath. A 5% solution of alkaline potassium permanganate is added to the first drop by drop to this solution, then in excess.
- How is a 5% solution of KMnO4 prepared?
- State the role of alkaline potassium permanganate in this reaction. What happens on adding it in excess?
- Write the chemical equation of this reaction.
How is ethanol manufactured from sugarcane?
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’.
Write the chemical equation for its reaction with ethanol to form compound ‘B’.
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:
Oxidation of ethanol by acidified potassium dichromate.
