Tag: applications of adsorption

Questions Related to applications of adsorption

Application of adsorption in pharmacy and allied field is/are :

applications of adsorption adsorption adsorption and colloids surface chemistry chemistry

  1. Decolourising agents

  2. Adsorption chromatography

  3. Purified talc

  4. None of the above

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Correct Option: A,B
Explanation:

Application of adsorption in pharmacy and allied fields are Decolourising agents, adsorption chromatography.

Application of adsorption in food industry is/are :

applications of adsorption adsorption adsorption and colloids surface chemistry chemistry

  1. decolourisation of edible oils

  2. to remove bitter substances from fruit juices

  3. to remove salt from water

  4. to remove sugar contents

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Correct Option: A,B
Explanation:

Decolorization of edible oils and removing bitter substances can be obtained through adsorption.

The ion exchange resins helps in:

applications of adsorption adsorption adsorption and colloids surface chemistry chemistry

  1. Removing moisture

  2. Controlling humidity

  3. Removing hardness of water

  4. All of the above

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Correct Option: C
Explanation:

Ion exchange resin method is used for removing hardness of water.

Application of adsorption chromatography is/are _________.

applications of adsorption adsorption adsorption and colloids surface chemistry chemistry

  1. separation of relatively non polar, water insoluble compounds

  2. seperation of isomers

  3. purification of antibody fragments

  4. all of the above

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Correct Option: D
Explanation:

Adsorption chromatography has many applications. Generally, it is used for determining the concentration of a compound (or its purity), separating out a mixture into individual componentsseperation of isomers, and identifying what is in a mixture and seperate on the basis of solubility also. There are three main types of adsorption chromatography - column, thin layer, and gas-solid.

Adsorption column chromatography has been used for :

applications of adsorption adsorption adsorption and colloids surface chemistry chemistry

  1. isolation and purification of vitamins and hormones

  2. examination of vegetable oil and pharmaceutical preparations

  3. used as indicator

  4. all of the above

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Correct Option: A,B
Explanation:

Column chromatography is used for isolation and purification of vitamins and hormones and for the examination of vegetable oil and pharmaceutical preparations.

Which of the following is most favourable for vander waals  adsorption?

applications of adsorption adsorption adsorption and colloids surface chemistry chemistry

  1. high pressure and high temperature

  2. low pressure and low temperature

  3. low pressure and high temperature

  4. high pressure and low temperature

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Correct Option: D
Explanation:

Physisorption is Vanderwaals adsorption, it occurs at high pressure and low temperature conditions.