English

Bubbles are seen in the test tube during the preparation of lime water. - Science and Technology 1

Advertisements
Advertisements

Question

Bubbles are seen in the test tube during the preparation of lime water.

One Line Answer

Solution

The bubbles in a small test tube are caused by the creation of CO2 during the interaction of acetic acid and sodium carbonate.

shaalaa.com
  Is there an error in this question or solution?
2024-2025 (March) Model set 1 by shaalaa.com

Video TutorialsVIEW ALL [1]

RELATED QUESTIONS

The molecular formula of acetic acid is _________ .
(a) CH3COOH
(b) CH3 – CH3
(c) C6H6
(d) C2H4


What are esters ?


A gas is liberated immediately with a brisk effervescence, when you add acetic acid to sodium hydrogen carbonate powder in a test tube. Name the gas and describe the test that confirms the identity of the gas. 


Write the formulae of ethanoic acid.


Name the gas evolved when ethanoic acid is added to sodium carbonate. How would you prove the presence of this gas?


An organic compound X of molecular formula C2H4O2 gives brisk effervescence with sodium hydrogen carbonate. Give the name and formula of X.


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?


Write the IUPAC name of the following:

\[\begin{array}{cc}
\ce{CH3}\\
|\\
\ce{CH3 -C -CH3}\\
|\\
\ce{CH3}
\end{array}\]


If you are asked to report your observations about the following two properties of acetic acid, what would you report?
(i) Odour
(ii) Effect on litmus


Name the functional group present in the following compound:
HCOOH


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


Explain the following term with example.
Monomer


Why is Soda lime used not only NaOH?


How is ethyne prepared in the laboratory?


Write the important uses of acetic acid.


What is the main constituent of vinegar?


Draw the structural formula for the following:

Ethanoic acid


Two statements are given - one labelled Assertion (A) and the other labelled Reason (R).
Assertion (A): Esterification is a process in which a sweet-smelling substance is produced.
Reason (R): When esters react with sodium hydroxide an alcohol and sodium salt of carboxylic acid are obtained.


Write the characteristics of ethanoic acid.


Which of the following substance produces brisk effervescence with baking soda solution?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×