Question 1 :
A molecule M associates in a given solvent according to the equation {tex} \mathrm { M } \rightleftharpoons ( \mathrm { M } ) _ { n } {/tex}. For a certain concentration of {tex} \mathrm { M } {/tex}, the van't Hoff factor was found to be {tex}0.9{/tex} and the fraction of associated molecules was {tex}0.2{/tex} . The value of {tex} n {/tex} is:

Question 2 :
The vant Hoff factor <img style='object-fit:contain' src="https://storage.googleapis.com/teachmint/question_assets/NEET/5ead69226694ca4eac0fcc74"> for a dilute solution of <img style='object-fit:contain' src="https://storage.googleapis.com/teachmint/question_assets/NEET/5ead687c6694ca4eac0fcb59"> is :

Question 3 :
At a particular temperature, the vapour pressures of two liquids {tex} \mathrm { A } {/tex} and {tex} \mathrm { B } {/tex} are respectively {tex}120{/tex} and {tex} 180 \mathrm { mm } {/tex} of mercury. If 2 moles of {tex} \mathrm { A } {/tex} and 3 moles of B are mixed to form an ideal solution, the vapour pressure of the solution at the same temperature will be (in mm of mercury)

Question 6 :
When 50 g of lactic acid was mixed with a mixture of equal volume of water and chloroform, the concentration of lactic acid in water was found to be 49.03 g <img style='object-fit:contain' src="https://storage.googleapis.com/teachmint/question_assets/NEET/5ead69b741e6ca4117818e49"> and in chloroform 0.97 g <img style='object-fit:contain' src="https://storage.googleapis.com/teachmint/question_assets/NEET/5ead69b741e6ca4117818e49"> . The distribution coefficient of lactic acid in favour of water is:

Question 9 :
A super saturated solution is a metastable state of solution in which solute concentration.

Question 10 :
Which of the following liquid pair shows a positive deviation from Raoults law?

Question 11 :
The vapour pressure of water at $300$ K in a closed&#160;container is $0.4$ atm. If the volume of the container&#160;is doubled, its vapour pressure at $300$ K&#160;will be:

Question 15 :
The vapour pressure of two pure liquids A and B, that form an ideal solution are $100$ and $900$ torr respectively at temperature T. This liquid solution of A and B is composed of $1$ mole of A and $1$ mole of B. What will be the pressure, when $1$ mole of mixture has been vapourized?

Question 16 :
When 100&#160;g of a saturated solution is evaporated at $50 ^oC$, 50 g of solid is left over. Find the solubility of the substance at $50^o&#160;C$.

Question 17 :
<div>What will be the solubility of the $Ca(OH)_2$ solution when $NaOH$ is dissolved in it, compared with that in pure water?</div>

Question 18 :
Vapour pressure of ${ CCI }_{ 4 }$ at ${ 24 }^{ o }C$ is $143 mmHg 0.05$g of the non-volatile solute (mol.wt.=65) is dissolved in $100 ml&#160;{ CCI }_{ 4 }$. Find the vapour pressure of the solution (Density of ${ CCI }_{ 4 }$=$1.58 g/{ cm }^{ 2 }$)

Question 19 :
Assertion: Deep sea divers carry oxygen cylinders with them. Reason: The deficiency of oxygen in bottom waters changes the type of organisms also. They are mostly small and fast-growing and can tolerate low concentrations of oxygen. At the bottom only bacteria and fungi can survive.

Question 20 :
The solubility of salt at 30$^o$C is $50$. Calculate the weight of water required to prepare a saturated solution containing $90 \,g$ of salt.

Question 22 :
For a given liquid at a given temperature vapour pressure is given by:<div><br/>$\;\;\;log_{10}P\:(mm)\,=\,\displaystyle-\frac{400(K)}{T}+10$</div><div><br/>Vapour pressure of the liquid at $400\:K$ is:</div>

Question 23 :
Henry's law constant for the solubility of $N_2$ gas in water at $298$ K is $1.0\times 10^5$ atm. The mole fraction of $N_2$ in air is $0.6$. The number of moles of $N_2$ from air dissolved in $10$ moles of water at $298$ K and $5$ atm pressure is:

Question 24 :
When a liquid that is immiscible with water was steam distilled at $95.2^o$C at a total pressure of $99.652$ kPa, the distillate contained $1.27$ g of the liquid per gram of water. What will be the molar mass of the liquid if the vapour pressure of water is $85.140$ kPa at $95.2^o$C?<br/>

Question 25 :
The vapour pressure of pure water at $25^{\circ}C$ is $30\ mm$. The vapour pressure of $10\%\ (W/W)$ glucose&#160; solution at $25^{\circ}C$ is :<br/>