Give one use with reason of1. an aqueous solution of NH32. liquefied N

1.	Give one use with reason of1. an aqueous solution of NH32. liquefied NH3
Answer» (i) Use of an Aqueous solution of Ammonia (NH₃) : An aqueous solution of NH₃ is called liquor ammonia. Being a base, it can easily emulsify oils and fats. Therefore, it is used for removing oil and fat stains from clothes carpets, upholstery etc. It is also used for cleaning window panes, porcelain articles etc. (ii) Use of Liqueified Ammonia (NH₃) : Liquid ammonia is used as refrigerant i.e. for producing low temperature. This is due to the following reasons: (a) It is highly volatile. (b) It can be easily liquefied under high pressure and low temperature. (c) It’s latent heat of evaporation is very high.

Give one use with reason of1. an aqueous solution of NH32. liquefied NH3

Answer»

(i) Use of an Aqueous solution of Ammonia (NH₃) : An aqueous solution of NH₃ is called liquor ammonia. Being a base, it can easily emulsify oils and fats. Therefore, it is used for removing oil and fat stains from clothes carpets, upholstery etc. It is also used for cleaning window panes, porcelain articles etc.

(ii) Use of Liqueified Ammonia (NH₃) : Liquid ammonia is used as refrigerant i.e. for producing low temperature.

This is due to the following reasons:

(a) It is highly volatile.

(b) It can be easily liquefied under high pressure and low temperature.

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