Ethnoic Acid
Ethnoic Acid
Ethanoic Acid or Acetic Acid:
commonly known as acetic acid. Its formula is CH3COOH. 5-8% solution of ethanoic acid in water is known as vinegar.
Physical Properties:
Its melting point is 290 K. During winters it often freezes and forms ice like flakes, so it is also called glacial acetic acid. Glacial acetic acid is a trivial name for water free (anhydrous) acetic acid. It is a weaker acid than HCI but stronger than alcohol.
Chemical Reactions:
a) Acidity: Weak acidity of acetic acid as compared to HCl is because of its low ionisation but is more acidic than alcohol is because of the more stability of ion formed after the removal of a proton (H+). It evolves hydrogen gas when reacts with sodium metal.
Which of the following are correct : (a) Hydrogen gas is evolved when Ethanoic Acid reacts with Sodium metal. (b) During winters Ethanoic Acid often freezes and forms ice like flakes, so it is also called glacial acetic acid. (c) Ethanoic Acid is a colourless, viscous liquid but has pungent smell. | |||
| Right Option : D | |||
| View Explanation | |||
Which of the following gas is evolved when Ethanoic Acid reacts with Sodium metal ? | |||
| Right Option : A | |||
| View Explanation | |||
Which of the following is also known as Ethanoic Acid ? | |||
| Right Option : B | |||
| View Explanation | |||
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