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प्रश्न
Name the functional group present in an organic compound which gives brisk effervescence with NaHCO3.
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उत्तर
Carboxylic acid group (-COOH) is the functional group which gives brisk effervescence with NaHCO3.
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संबंधित प्रश्न
A student adds 2 mL of acetic acid to a test tube containing 2 mL of distilled water. He then shakes the test tube well and leaves it to settle for some time. After about 5 minutes he observes that in the test tube there is :
(A) a clear transparent colourless solution
(B) a clear transparent pink solution
(C) a precipitate settling at the bottom of the test tube
(D) a layer of water the layer of acetic acid
When you add about 2 ml of acetic acid to a test tube containing an equal amount of distilled water and leave the test tube to settle after shaking its contents, what will you observe in the test tube after about 5 minutes?
(A) A white precipitate settling at its bottom
(B) A clear colourless solution
(C) A layer of water over the layer of acetic acid
(D) A layer of acetic acid over the layer of water
A student adds a few drops of ethanoic acid to test tubes X, Y and Z containing aqueous solutions of sodium chloride, sodium hydroxide and sodium carbonate, respectively. If he now brings a burning splinter near the mouth of the test tubes immediately after adding ethanoic acid in each one of them, in which of the test tube or test tubes the flame will be extinguished?
(A) X and Y
(B) Y and Z
(C) X and Z
(D) only Z
What is the common name of ethanoic acid?
What is the common name of methanol?
Complete the following equation:
`CH_3 COOH + CH_2 H_5 OH` 
What type to compound is CH3COOH?
What is the physical state of CH3COOH?
Esters are sweet-smelling substances and are used in making perfumes. Describe an activity for the preparation of an ester with the help of a well labelled diagram. Write an equation for the chemical reaction involved in the formation of the ester. Also write the names of all the substances involved in the process of esterification.
What do you notice when acetic acid reacts with metals?
On adding acetic acid to sodium hydrogen carbonate in a test tube, a student observes
(A) no reaction
(B) a colourless gas with pungent smell
(C) bubbles of a colourless and odourless gas
(D) a strong smell of vinegar
Under what conditions does ethane get converted to ethyl alcohol?
Write the important uses of acetic acid.
Define glacial acetic acid?
Using appropriate catalysts, ethane can be oxidized to an alcohol. Name the alcohol formed when ethane is oxidized.
Give balanced chemical equations for the following conversion :
Ethanoic acid to ethyl ethanote
Write the molecular formula of the given compound.
Ethanoic acid
Give a chemical reaction in which a catalyst is used.
When ethanoic acid is treated with NaHCO^ the gas evolved is ______.
Draw the structural diagram of:
Ethanoic acid
