Question:
Which of the following is not a drying and dehydrating agent?
Which of the following is not a drying and dehydrating agent?
Updated On: Aug 23, 2023
- $ {{P}_{2}}{{O}_{5}} $
- Silica gel
- Hydrated $ CaC{{l}_{2}} $
- Cone. $ {{H}_{2}}S{{O}_{4}} $
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The Correct Option is C
Approach Solution - 1
Hydrated \(CaC{{l}_{2}}\) is not a dehydrating agent. It is anhydrous \(CaC{{l}_{2}}\) , which is a good dehydrating agent.
So, the correct answer is (C): Hydrated CaCl2
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Approach Solution -2
Drying agent is the one that is used to remove moisture and water vapour from the surroundings. They are used to present the detrimental effects of the moisture like degradation, corrosion etc. They help in maintaining the quality and integrity of the product that is produced. The examples of drying agents are conc. H2SO4, CaO and P2O5. Therefore, all the given options are examples of drying agents.
So, the correct answer is (C): Hydrated CaCl2
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- P block elements are those in which the last electron enters any of the three p-orbitals of their respective shells. Since a p-subshell has three degenerate p-orbitals each of which can accommodate two electrons, therefore in all there are six groups of p-block elements.
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