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प्रश्न
Draw the structure for the following compound.
Ethanoic acid
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उत्तर
Structure of ethanoic acid:
1)
\begin{array}{cc}\\
\phantom{......}\ce{H}\phantom{.....}\ce{O}\phantom{}\\
\phantom{......}|\phantom{....}//\phantom{}\\\phantom{}
\phantom{}\ce{H - C - C}\phantom{}\\
\phantom{......}|\phantom{.....}\backslash\\\phantom{}
\phantom{........}\ce{H}\phantom{.....}\ce{OH}\phantom{}\\
\end{array}
2)
\begin{array}{cc}\\
\phantom{.}\ce{O}\\
\phantom{.}||\\
\ce{CH3 - C - OH}
\end{array}
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संबंधित प्रश्न
While studying saponification reaction for the preparation of soap, a teacher suggested to a student to add a small quantity of common salt to the reaction mixture. The function of common salt in this reaction is to
(A) reduce the alkalinity of the soap
(B) reduce the acidity of the soap
(C) enhance the cleansing capacity of soap
(D) favour precipitation of soap
When you add a few drops of acetic acid to a test-tube containing sodium bicarbonate powder, which one of the following is your observation?
(A) No reaction takes place
(B) A colourless gas with pungent smell is released with brisk effervescence
(C) A brown coloured gas is released with brisk effervescence
(D) Formation of bubbles of a colourless and odourless gas
What is the common name of methanoic acid.
Describe a test for carboxylic acid.
What is the physical state of CH3COOH?
What happens when ethanoic acid reacts with sodium carbonate? Write chemical equation of the reaction involved.
Describe one reaction of a carboxylic acid.
Name the product formed and give an appropriate chemical equation for the following:
Ethanol oxidised by acidified potassium dichromate.
Give the structural formulae of acetic acid.
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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.
A student takes Na2CO3 powder in a test tube and pours some drops of acetic acid over it. He observes:
(A) no reaction in the test tube
(B) colourless gas with pungent smell
(C) bubbles of a colourless and odourless gas
(D) white fumes with smell of vinegar
Write three physical properties of acetic acid.
What is thr boilng point of acetic acid?
How will you carry out the following conversions?
Ethene to acetic acid
Write balanced euation for the following :
Ethane is burnt in air.
Draw the structural formula for the following:
Ethanoic acid
Ethanoic acid turns ______ litmus to ______
Which of the following substance produces brisk effervescence with baking soda solution?
Raina while doing certain reactions observed that heating of substance ‘X’ with a vinegar-like smell with a substance ‘Y’ (which is used as an industrial solvent.) in the presence of conc. Sulphuric acid in a water bath gives a sweet-smelling liquid ‘Z’ having molecular formula C4H8O2. When heated with caustic soda (NaOH), ‘Z’ gives back the sodium salt and the compound ‘Y’.
Identify ‘X’, ‘Y’, and ‘Z’. Illustrate the changes with the help of suitable chemical equations.
