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प्रश्न
Identify the term or substance based on the descriptions given below:
Ice like crystals formed on cooling an organic acid sufficiently.
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उत्तर
Glacial acetic acid
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संबंधित प्रश्न
A student adds a few drops of ethanoic acid to test tubes X, Y and Z containing aqueous solutions of sodium chloride, sodium hydroxide and sodium carbonate, respectively. If he now brings a burning splinter near the mouth of the test tubes immediately after adding ethanoic acid in each one of them, in which of the test tube or test tubes the flame will be extinguished?
(A) X and Y
(B) Y and Z
(C) X and Z
(D) only Z
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
Three organic compounds A, B and C have the following molecular formulae: C4H10O
Which compound contains a carboxyl group? Write its name and structural formula.
Why is the conversion of ethanol into ethanoic acid an oxidation reaction?
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?
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
What do you notice when acetic acid reacts with alkalies?
What do you observe when acetic acid is added to ethyl alcohol in the presence of sulphuric acid?
Distinguish between esterification and saponification reactions with the help of chemical equations for each.
Write the chemical equation for the following:
Esterification Reaction
