Question

Ammonia liquor is prepared by dissolving?
A. Ammonia gas in alcohol
B. Ammonia gas in water
C. Ammonia gas in hydrochloric acid
D. Ammonia gas in caustic soda solution

Answer 1

Hint: Ammonia liquor is also known as Ammonium hydroxide because it gets deprotonates in that solution and forms ammonium ion. This information can easily take to the solution if analyzed thoroughly.

Step by step explanation:
Before proceeding directly to the solution, let us first know what is ammonia and what is liquor ammonia and how it is prepared and what are the differences between these two. This all concept will automatically take to the answer.
Ammonia is a compound which has a molecular formula \[N{H_3}\]and it is colorless gas with a pungent smell. It is used in daily life as well like in refrigerants, in preparation of plastics, explosives, dyes and other household cleaning products.
Ammonia exists as a gas under room temperature and as its name suggests it does not have any water content in it.
If ammonia is dissolved in water, it becomes a solution of ammonia in water which is called as Ammonia liquor or also ammonium hydroxide solution or Ammonia water which is generally used everywhere.
So, ammonia has formula of \[N{H_3}\] and when water is added to it the reaction is: -
\[N{H_3} + {\text{ }}{H_2}O{\text{ }} \to N{H_4}OH(aq.)\]
So, ammonium hydroxide (as its name suggests) has water content in it and is prepared by dissolving ammonia gas in water.

Therefore, the correct answer is Option B i.e. Ammonia gas in water

Note: Ammonia and ammonia liquor are different as we discussed in the question and to answer any question related to it, even names could suggest the reagent used to prepare the solution. In the ammonia topic there is a process called Haber's process which is very important and many times questions are asked on it as well.