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Which of the following is not an example for absorption?

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in Food Processing Unit Operations by (110k points)
Which of the following is not an example for absorption?

(a) Reaction of oxygen by fermentation broths

(b) Removal of carbon dioxide from water-gas by absorption in water or in solutions of alkalis or amines

(c) Reaction of hydrogen by petroleum fractions in processes to remove sulphur as hydrogen sulphide.

(d) Liquid ammonium in air

I got this question during an online interview.

I would like to ask this question from Absorption Principles in portion Absorption of Food Processing Unit Operations

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Correct option is (d) Liquid ammonium in air

Best explanation: Examples of absorption are i. Absorption of nitrous gases in water or nitric acid, during nitric acid manufacture. ii. Removal of carbon monoxide from water-gas by absorption in solutions of copper complexes. iii. The production of hypochlorite by absorbing chlorine through alkaline solutions. iv. Absorption of hydrogen by petroleum fractions in processes to remove sulphur as hydrogen sulphide.

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