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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
The molecular formula of acetic acid is _________ .
(a) CH3COOH
(b) CH3 – CH3
(c) C6H6
(d) C2H4
Complete the following chemical equations:
C2H5OH+CH3COOH`("conc."H_2SO_4)/`>
Give the name and structural formula of one homologue of HCOOH.
How would you distinguish experimentally between an alcohol and carboxylic acid on the basis of a chemical property?
What type of compound is formed when a carboxylic acid reacts with an alcohol in the presence of conc. H2SO4?
What happens when ethanoic acid reacts with sodium hydroxide? Write equation of the reaction involved.
State any two uses of esters.
A neutral organic compound is warmed with some ethanoic acid and a little of conc. H2SO4. Vapours having sweet smell (fruity smell) are evolved. What type of functional group is present in this organic compound?
Name the compound formed when acetic acid and ethanol react together.
A student takes 2 mL acetic acid in a dry test tube and adds a pinch of sodium hydrogen carbonate to it. He makes the following observations:
I. A colourless and odourless gas evolves with a brisk effervescence.
II. The gas turns lime water milky when passed through it.
III. The gas burns with an explosion when a burning splinter is brought near it.
IV. The gas extinguishes the burning splinter that is brought near it.
The correct observations are:
(A) I, II, and III
(B) II, III and IV
(C) III, IV and I
(D) IV, I and II
What is the action of acetic acid with litmus paper?
State how the following conversions can be carried out:
Ethyl alcohol to Ethane
State are relevant observations for following reactant:
Addition of ethyl alcohol to acetic acid in presence of conc. H2SO4
A compound X when treated with an organic acid Y (having vinegar-like smell) in the presence of the acid Z, forms a compound P which has a fruity smell.
- Identify X, Y and Z
- Write the structural formula of X and Y.
- What type of compound is P?
- Name the above reaction.
- If compounds X and Y both have 2 carbon atoms. Write the reaction.
Convert ethane to acetic acid.
Give a chemical reaction in which a catalyst is used.
In the presence of the acid catalyst, ethanoic acid reacts with ethanol and ______ ester is produced.
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.
Give the balanced chemical equation of the following reaction:
Neutralization of NaOH with ethanoic acid.
Give the balanced chemical equation of the reaction.
Oxidation of ethanol by acidified potassium dichromate.
