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Question
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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Solution
Glacial acetic acid
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RELATED QUESTIONS
Ethanoic acid has a .................... odour.
(a) Rotten eggs
(b) Pungent
(c) Vinegar-like
(d) Mild
What is the common name of methanol?
A student takes 2 mL acetic acid in a dry test tube and adds a pinch of sodium hydrogen carbonate to it. He makes the following observations:
I. A colourless and odourless gas evolves with a brisk effervescence.
II. The gas turns lime water milky when passed through it.
III. The gas burns with an explosion when a burning splinter is brought near it.
IV. The gas extinguishes the burning splinter that is brought near it.
The correct observations are:
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(B) II, III and IV
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(D) IV, I and II
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Suggest a method of testing the gas liberated in the reaction.
