Advertisements
Advertisements
Question
When zinc powder is added to acetic acid ______________
(a) the mixture becomes warm
(b) a gas is evolved
(c) the colour of the mixture becomes yellow
(d) a solid settles at the bottom
Advertisements
Solution
A gas is evolved.
Zn + 2CH3COOH → Zn (CH3COO)2 + H2
APPEARS IN
RELATED QUESTIONS
A student adds a spoon full of powdered sodium hydrogen carbonate to a flask containing ethanoic acid. List two main observations, he must note in his note book, about the reaction that takes place. Also write chemical equation foe the reaction.
Choose the correct alternative and rewrite the following:
Acetic acid ..................
Give the common name and IUPAC name of the following compound:
HCOOH
Describe a test for carboxylic acids.
Why is the conversion of ethanol into ethanoic acid an oxidation reaction?
Name one chemical compound which can be used to distinguish between ethanol and ethanoic acid.
Vinegar is a solution of about:
(a) 5 to 8 per cent ethanoic acid in alcohol
(b) 5 to 8 per cent ethanoic acid in water
(c) 50 to 80 per cent ethanoic acid in water
(d) 50 to 80 per cent ethanoic acid in alcohol
Consider the following organic compounds:
HCHO, C2H5OH, C2H6, CH3COOH, C2H5Cl
Choose two compounds which can react in the presence of conc. H2SO4 to form an ester. Give the name and formula of the ester formed.
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:
\[\begin{array}{cc}
\ce{CH3}\\
|\\
\ce{CH3 -C -CH3}\\
|\\
\ce{CH3}
\end{array}\]
Write the names of three compounds which can be oxidised directly or in stages to produce acetic acid.
The next higher homologue of ethanoic acid is ______.
Name the functional group present in the following compound:
C2H5CHO
Under what conditions does ethane get converted to ethyl alcohol?
Name the following:
A toxic alcohol
The functional group present in acetic acid is ______.
Ester is formed by the reaction between ______.
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.
