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प्रश्न
Which of the following molecular formula corresponds to ethylbutanoate ester?
(a) C5H10O2
(b) C6H12O2
(c) C7H14O2
(d) C8H16O2
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उत्तर
C6H12O2
Ethylbutanoate ester has the molecular formula C6H12O2 (C2H5COOC3H7).
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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
Complete the following chemical equations: C2H5OH+O2→
Identify the term or substance based on the descriptions given below
Ice like crystals formed on cooling an organic acid sufficiently.
What will you observe when dilute ethanoic acid and dilute hydrochloric acid are put on universal indicator paper, one by one? What does it show?
What happens when ethanoic acid reacts with sodium carbonate? Write chemical equation of the reaction involved.
Write the IUPAC name of the following:
\[\begin{array}{cc}
\ce{CH3}\\
|\\
\ce{CH3 -C -CH3}\\
|\\
\ce{CH3}
\end{array}\]
Write the names of the first three members of the carboxylic acid series.
What do you notice when acetic acid reacts with metals?
Name the functional group present in the following compound:
C2H5CHO
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
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
Explain the following term with example.
Reduction
Fill in the blank with appropriate word/words.
Esterification is the reaction between carboxylic acid and ______ in presence of ____
Write the chemical equation for the following:
Combustion of methane
Write a balanced chemical equation for the following:
Monochloroethane is hydrolysed with aqueous KOH.
Give a balanced chemical equation for the following conversion:
Calcium carbide to ethyne.
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.
Rewrite the following statement by selecting the correct option.
The formula of ethanoic acid is _____________.
A few drops of ethanoic acid were added to solid sodium carbonate. The observation made was that ______.
The reaction between acetic acid and sodium carbonate is shown in the following figure.
Answer the questions with the help of a diagram.
- Which gas does come out as effervescence in the big test tube?
- What is the colour change in the lime water present in the small test tube?
- Write the related reaction.
