Which of the following is not a property of ammonia?
High boiling point
Basic in nature
Easily liquefiable
Pungent odor
Correct Option A
Ammonia has a low boiling point of -33°C and a high vapor pressure. Therefore, it is easily liquefiable and can be stored as a liquid under pressure. It is basic in nature due to the presence of a lone pair of electrons on nitrogen, which can accept a proton to form ammonium ions. Ammonia also has a pungent odor, which is why it is used as a smelling salt. However, it does not have a high boiling point as it is a gas at room temperature. Hence option A is the correct answer.
Option (B) is incorrect because ammonia is basic in nature due to the presence of a lone pair of electrons on nitrogen, which can accept a proton to form ammonium ions. Hence option B is incorrect.
Option (C) is incorrect because ammonia has a low boiling point of -33°C and a high vapor pressure. Therefore, it is easily liquefiable and can be stored as a liquid under pressure. Hence option C is incorrect.
Option (D) is incorrect because ammonia also has a pungent odor, which is why it is used as a smelling salt. Hence option D is incorrect.