Advertisements
Advertisements
प्रश्न
Draw the structure of butanoic acid.
Advertisements
उत्तर
Structure of butanoic acid (C3H7COOH) is as follows:
\[\begin{array}{cc}
\ce{H}\phantom{...}\ce{H}\phantom{...}\ce{H}\phantom{...}\ce{O}\phantom{.}\phantom{.}\\
|\phantom{....}|\phantom{....}|\phantom{....}||\phantom{..}\\
\ce{H - C - C - C - C - OH}\\
|\phantom{....}|\phantom{....}|\phantom{.....}\phantom{..}\\
\ce{H}\phantom{...}\ce{H}\phantom{...}\ce{H}\phantom{.....}\phantom{..}\end{array}\]
APPEARS IN
संबंधित प्रश्न
In an experiment to study the properties of ethanoic acid, a student takes about 3 mL of ethanoic acid in a dry test tube. He adds an equal amount of distilled water to it and shakes the test tube well. After some time he is likely to observe that
(A) a colloid is formed in the test tube.
(B) the ethanoic acid dissolves readily in water.
(C) the solution becomes light orange.
(D) water floats over the surface of ethanoic acid.
In order to study saponification reaction, we first prepare 20% solution of sodium hydroxide. If we record the temperature of this solution just after adding sodium hydroxide flakes to water and also test its nature using litmus, it may be concluded that the process of making this solution is
(A) exothermic and the solution is alkaline
(B) endothermic and the solution is alkaline
(C) endothermic and the solution is acidic
(D) exothermic and the solution is acidic
Give the common names and IUPAC names of the following compounds of CH3COOH.
Name the functional group present in an organic compound which gives brisk effervescence with NaHCO3.
What is the physical state of CH3COOH?
What is an oxidising agent?
How does ethanoic acid react with sodium hydrogen carbonate? Give equation of the reaction which takes place.
When ethanoic acid reacts with sodium hydrogen carbonate, then a salt X is formed and a gas Y is evolved. Name the salt X and gas. Y Describe an activity with the help of a labelled diagram of the apparatus used to prove that the evolved gas is the one which you have named. Also write the chemical equation of the reaction involved.
State any two uses of esters.
What is glacial acetic acid?
Name the substance used to change acetic acid to acetic anhydride?
A student puts a drop of acetic acid first on a blue litmus paper and then on a red litmus paper. He would observe that
(A) the red litmus paper turns colourless and there is no change in the blue litmus paper.
(B) the red litmus paper turns blue and the blue litmus paper turns red.
(C) there is no change in the red litmus paper and the blue litmus paper turns red.
(D) there is no change in the blue litmus paper and the red litmus paper turns blue.
Explain the following term with example.
Monomer
Draw the structural formula of a compound with two carbon atoms in the following case:
An alcohol containing two carbon atoms.
State how the following conversions can be carried out:
Ethyl chloride to Ethyl alcohol
Write the molecular formula of the given compound.
Ethanoic acid
Which of these is not an organic acid?
Bubbles are seen in the test tube during the preparation of lime water.
Reshu by mistake forgot to label the two test tubes containing Ethanol and Ethanoic acid. Suggest an experiment to identify the substances correctly? Illustrate the reactions with the help of chemical equations.
What happens when a small piece of sodium is dropped in ethanol? Write the equation for this reactions.
