Azeotropic Mixtures

Q. Match the following column and correct options.
$\begin{array}{cccc}& \text{Column I}& & \text{Column II}\\ \left(a\right)& \text{Raoult's law}& \left(p\right)& \text{Effect of pressure on solubility of gas in liquid}\\ \left(b\right)& \text{Henry's law}& \left(q\right)& \frac{P^o-P_s}{P^o}=X_B\\ \left(c\right)& \text{Ethyl alcohol + Water}& \left(r\right)& \text{Ideal solution}\\ \left(d\right)& \text{Benzene +Toluene}& \left(s\right)& \text{Azeotropic mixture}\end{array}$

1. $a\to p,b\to q,c\to s,d\to r$
2. $a\to q,b\to p,c\to s,d\to r$
3. $a\to q,b\to p,c\to r,d\to s$
4. $a\to p,b\to q,c\to r,d\to s$

Q. Which of the following is/are correct graph(s) for a binary mixture of two volatile liquids which form a minimum boiling azeotrope?

Q. The azeotropic mixture of water and $HCl$ boils at ${108.5}^{\circ }C$. When this mixture is distilled, it is possible to obtain:

Q. $100\text{mL}$ of liquid 'A' and $50\text{mL}$ of liquid 'B' are mixed to form $138\text{mL}$ of solution. The given solution is a/an:

1. None of the above
2. Ideal solution
3. Minimum boiling Azeotrope
4. Maximum boiling Azeotrope

Q.

Which of the following is used to stir a mixture or solution in the laboratory?

1. Glass rod

2. Glass tube

3. Pipette

4. Capillary tube

Q. If two liquids A and B form a minimum boiling azeotrope at some specific composition then:

1. Shows a large positive deviation from Raoult's law
2. Total vapour pressure of solution decreases
3. A-B interactions are stronger than those between A-A or B-B
4. Total vapour pressure of the solution increases

Q. Which of the following is incorrect regarding minimum boiling azeotropes?

Q. Which of the following is/are true regarding maximum boiling azeotropes?

1. $\Delta S_{mix}>0$
2. $\Delta G_{mix}>0$
3. Azeotropic mixture has higher vapour pressure as compared to vapour pressure of each component in pure state.
4. $\Delta H_{mix}<0$

Q. The mixture that forms a maximum boiling azeotrope is:

1. Water + Nitric acid
2. Ethanol + Water
   
3. Acetone + Carbon disulphide
4. Heptane + Octane

Q. Volatile liquids A and B forming an azeotrope (at a particular temperature range) have vapour pressures of $280mm$ and $200mm$ of $Hg$ respectively. If the mole fraction of A in the solution mixture is 0.3, and the mixture has a total vapour pressure of $300mm$ of $Hg$.

Choose the correct statement(s) for the following mixture.

1. It forms a minimum boiling azeotrope.
2. First maximum and then minimum boiling azeotrope is formed.
3. It forms a maximum boiling azeotrope.
4. First minimum and then maximum boiling azeotrope is formed.

Q. Volatile liquids A and B forming an azeotrope (at a particular temperature range) have vapour pressures of $280mm$ and $200mm$ of $Hg$ respectively. If the mole fraction of A in the solution mixture is 0.3, and the mixture has a total vapour pressure of $300mm$ of $Hg$.

Choose the correct statement(s) for the following mixture.

1. It forms a minimum boiling azeotrope.
2. First minimum and then maximum boiling azeotrope is formed.
3. It forms a maximum boiling azeotrope.
4. First maximum and then minimum boiling azeotrope is formed.

Q. Which of the following statement is true regarding azeotropic mixtures?

1. The mixture can be seperated by fractional distillation
2. Azeotropic mixtures are formed by ideal solutions
3. During boiling, composition of mixture remains constant
4. The mixture can be seperated by steam distillation

Q. Which of the following is true regarding maximum boiling azeotropes?

1. $\Delta S_{mix}<0$
2. Azeotropic mixture has higher vapour pressure as compared to vapour pressure of each component in pure state.
3. $\Delta H_{mix}<0$
4. $\Delta G_{mix}>0$

Q. $P_{\left(A\right)}^o$ = 60 mm of Hg and $P_{\left(B\right)}^o$ = 45mm of Hg. If 1 mol of A and 2 mol of B are mixed, the solution forms an azeotropic mixture with a minimum boiling point, then mole fraction of A in its vapour phase above the solution will be

1. $\frac{2}{5}$
2. $\frac{3}{5}$
3. $\frac{2}{3}$
4. $\frac{1}{3}$

Q. An azeotropic solution of two liquids has boiling point lower than either of them when it

1. Shows negative deviation from Raoult’s law
2. Shows no deviation from Raoult’s law.
3. Shows positive deviation from Raoult’s law.
4. Is saturated

Q. The plot of $P_T$ vs $y_A$ at constant temperature in the pressure composition diagram is
$P_A\to \text{Total pressure}$
$y_A\to \text{Mole fraction of A in vapour phase}$

1. 
2. 
3. 
4. 

Q. An azeotropic solution of two liquids has boiling point lower than either of them when it

1. Shows negative deviation from Raoult’s law
2. Shows no deviation from Raoult’s law.
3. Shows positive deviation from Raoult’s law.
4. Is saturated