Answer
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Hint:Liquid oxygen is pale blue in color and it is extremely cold. Liquid oxygen is a solution of hydrogen peroxide, sodium chloride and other compounds. It is quite an efficient source of oxygen supplementation without any side effects. It makes the materials extremely brittle.
Complete step by step answer:
Liquid oxygen is around a thousand times denser than gaseous oxygen. It is highly used in the science and medical sectors. It is nonflammable and extremely cold. The oxygen that has been compressed into liquid form is known as liquid oxygen. It contains two unpaired electrons due to which it is highly paramagnetic in nature. The two unpaired electrons create magnetic asymmetry due to which red light is absorbed in the visible spectrum. Due to absorption of red color, the characteristic color of liquid oxygen becomes pale blue.
So, the correct choice is (A).
Additional Information:
Liquid oxygen is nonflammable but it supports combustion. The availability and concentration of oxygen is increased in the liquid form. The boiling point of liquid oxygen is$-{{297.3} ^ {0}} F$. It is cryogenic liquid because cryogenic liquids are those that have normal boiling points below$-{{130} ^ {0}} F$. Argon, helium, hydrogen and nitrogen are also stored as cryogenic liquids. These liquids are used for providing extremely low temperatures for experimental purposes. Liquid oxygen drops are an excellent source for supplying oxygen to the human body in case a person has problems breathing.
Note:
Oxygen in a gaseous state is colorless but liquid oxygen is pale blue in color. Liquid oxygen helps in removing altitude sickness, insomnia and hangovers. It is easily portable and has low weight. Dewars are non -pressurized double wall containers which are used to store cryogenic liquids. Hospitals store large quantities of liquid oxygen for medical use.
Complete step by step answer:
Liquid oxygen is around a thousand times denser than gaseous oxygen. It is highly used in the science and medical sectors. It is nonflammable and extremely cold. The oxygen that has been compressed into liquid form is known as liquid oxygen. It contains two unpaired electrons due to which it is highly paramagnetic in nature. The two unpaired electrons create magnetic asymmetry due to which red light is absorbed in the visible spectrum. Due to absorption of red color, the characteristic color of liquid oxygen becomes pale blue.
So, the correct choice is (A).
Additional Information:
Liquid oxygen is nonflammable but it supports combustion. The availability and concentration of oxygen is increased in the liquid form. The boiling point of liquid oxygen is$-{{297.3} ^ {0}} F$. It is cryogenic liquid because cryogenic liquids are those that have normal boiling points below$-{{130} ^ {0}} F$. Argon, helium, hydrogen and nitrogen are also stored as cryogenic liquids. These liquids are used for providing extremely low temperatures for experimental purposes. Liquid oxygen drops are an excellent source for supplying oxygen to the human body in case a person has problems breathing.
Note:
Oxygen in a gaseous state is colorless but liquid oxygen is pale blue in color. Liquid oxygen helps in removing altitude sickness, insomnia and hangovers. It is easily portable and has low weight. Dewars are non -pressurized double wall containers which are used to store cryogenic liquids. Hospitals store large quantities of liquid oxygen for medical use.
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