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प्रश्न
Ethanoic acid _________.
पर्याय
is odourless
has a pungent smell
has a smell of rotten egg
- has a vinegar-like an odour
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उत्तर
Ethanoic acid has a pungent smell.
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संबंधित प्रश्न
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
A student takes about 6 ml of distilled water in each of the four test tubes P, Q, R and S. He then dissolves an equal amount of four different salts namely, sodium chloride in 'P', potassium chloride in 'Q', calcium chloride in 'R' and magnesium chloride in 'S'. Next, he then adds 10 drops of soap solution to each test tube and shakes its contents. The test tubes in which scum (insoluble substance) is formed with soap are:
(A) P and Q
(B) Q and R
(C) R and S
(D) Q and S
Write the name and chemical formula of the simplest organic acid.
Write the formulae of methanoic acid.
The organic acid present in vinegar is ______.
What is an oxidising agent?
How is ethanoic acid obtained from ethanol? Write down the chemical equation of the reaction involved.
Give any two uses of ethanoic acid.
An organic compound A (molecular formula C2H4O2) reacts with Na metal to form a compound B and evolves a gas which burns with a pop sound. Compound A on treatment with an alcohol C in the presence of a little of concentrated sulphuric acid forms a sweet-smelling compound D (molecular formula C3H6O2). Compound D on treatment with NaOH solution gives back B and C. Identify A, B, C and
Write the names of the first three members of the carboxylic acid series.
What do you observe when acetic acid is added to a neutral FeCl3 solution?
Write a balanced equation for the following:
Write the equation for the preparation of ethylene from ethyl alcohol.
Give balanced chemical equations for the following conversion :
Ethanoic acid to ethyl ethanote
Draw the structural formula for the following:
Ethanoic acid
Choose the correct alternative and rewrite the following:
Some acetic acid is treated with solid NaHCO3, the resulting solution will be _________________.
With a labelled diagram describe in brief an activity to show the formation of ester.
What happens when a small piece of sodium is dropped in ethanol? Write the equation for this reaction.
Write the chemical equation for the following:
Saponification Reaction
A spatula full of sodium carbonate is taken in a test tube and 2 mL of dilute ethanoic acid is added to it.
Suggest a method of testing the gas liberated in the reaction.
Observe the diagram given below and answer the questions:
- Name the reactants in this reaction.
- Which gas comes out as effervescence in the bigger test tube?
- What is the colour change in the lime water?
- In the above experiment instead of sodium carbonate which chemical can be used to get same products?
- Write the use of acetic acid.
