Chemistry MCQs for NEET — Practice Questions with Answers

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At 293 K temperature, if partial pressure of all given gases are same, then, which of the following is the correct descending order of solubility of gases in water ?

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At 293 K temperature, for solubility of all given gases, in water, which gas possesses higher value of KH ?

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At 293 K temperature, for solubility of all given gases, in water, which gas possesses lower value of KH ?

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At 298 K temperature, for solubility of all given gases, which of the following is the correct ascending order of values of Henry’s constant ?

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At 293 K temperature, for solubility of all given gases, which of the following is the correct descending order of values of Henry’s constant ?

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In which of the following specific condition, $ CO_2 $ gas is filled in cold drinks, and in soda water ?

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In which condition, Henry’s law is applicable ?

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Explanation

Henry's law is applicable when the gaseous solute neither associates nor dissociates in the solution. It assumes ideal behavior of the gas and no chemical reaction with the solvent.

Now a days, divers uses the cylinder having gaseous mixture contains -

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Explanation

Nowadays, divers use a gaseous mixture called Nitrox, which contains 32.1% oxygen, 56.2% nitrogen, and 11.7% helium. This mixture allows divers to stay underwater for a longer duration without the risk of nitrogen narcosis or decompression sickness.

Due to which reason, $ O_2$ gas liberates from the blood of tissues of animal bodies

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Explanation

Oxygen gas is liberated from the blood of tissues in animal bodies when the partial pressure of oxygen in the tissues is lower than the partial pressure of oxygen in the blood. This concentration gradient drives the diffusion of oxygen from the blood to the tissues.

Which of the following is not a substitutional solid solution ?

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Explanation

Tungsten carbide (WC) is an interstitial solid solution, where carbon atoms occupy the interstitial spaces in the tungsten metal lattice. Brass, steel, and monel metal are examples of substitutional solid solutions, where one type of atom substitutes for another in the crystal lattice.

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