Definition of Solution

Q.

QUESTION 2.1

Define the term solution. How many types of solutions are formed? Write briefly about each type with an example.

Q.

The correct order of increasing solubility of AgCl in $\left(\mathrm{A}\right)$ Water $\left(\mathrm{B}\right)$ $0.1\mathrm{M}$ $\mathrm{NaCl}$ $\left(\mathrm{C}\right)$ $0.1\mathrm{M}$ ${\mathrm{BaCl}}_2$$\left(\mathrm{D}\right)$ $0.1\mathrm{M}$ ${\mathrm{NH}}_3$

1. A$<$B$<$C$<$D

2. B$<$C$<$A$<$D

3. C$<$B$<$D$<$A

4. C$<$B$<$A$<$D

Q.

Relative lowering of vapour pressure of a dilute aqueous solution of glucose is found to be $0.018$. Hence, elevation in boiling point is:
(Given, that $1$ molal aqueous urea solution boils at $00.54{}^{o}C$ at $1$ atm pressure)

Q. Calculate the percentage degree of dissociation of an electrolyte $X{Y}_2$ (Normal molar mass = $164$) in water if the observed molar mass by measuring elevation in boiling point is $65.6$

Q. Who is God of chemistry?

Q.

Define the term solution. How many types of solutions are formed? Write briefly about each type with an example.

Q. A solution containing 0.2563 g of naphthalene (molecular mass = 128) in 50 g of carbon tetrachloride yields a boiling point elevation of ${0.201}^{\circ }C$ while a solution of 0.6216 g of an unknown solute in the same mass of the solvent gives a boiling point elevation of ${0.647}^{\circ }C$. Find the molecular mass of unknown solute.

1. 96.44
2. 86.44
3. 90
4. 88

Q. Why are copper Gold Silver sols called negatively charged sols?

Q. $0.1\text{molal}$ aqueous solution of an electrolyte $A{B}_4$ is $75\%$ ionised. The boiling point $\text{in K}$ of the solution at $1\text{atm}$ is : $K_{b\left(H_{2}O\right)}=0.52\text{K kg}{\text{mol}}^{-1}$. (Report your answer upto two decimal only).

Q.

Perform an activity to illustrate the characteristics of solutions, suspensions and colloids.

Q.

The normal density of a material is $\rho$ and its bulk modulus of elasticity is $K$. The magnitude of increase in density of material when a pressure $P$ is applied uniformly on all sides will be:

1. $\frac{\rho K}{P}$

2. $\frac{K}{\rho P}$

3. $\frac{PK}{\rho }$

4. $\frac{\rho P}{K}$

Q. At higher altitude, boiling point of water is $95{}^{o}C$. The mass in gram of $NaCl$ ($\alpha =0.8$) added to $100\text{g}$ of water $(K_b=0.52{\text{K kg mol}}^{-1})$ in order to raise the boiling point to $100{}^{o}C$ is:
$(\text{M.W of}NaCl=58.5\text{u})$

Q. Define the term solution. How many types of solutions are formed? Write briefly about each type with an example.

Q. Liquid mixtures like milk and blood can be called solutions.

1. True
2. False

Q.

Question 48
Match the items given in Column I with the type of solutions given in Column II.
$\begin{array}{cc}ColumnI& ColumnII\\ A.Sodawater& 1.Asolutionofgasinsolid\\ B.Sugarsolution& 2.Asolutionofgasingas\\ C.Germansilver& 3.Asolutionofsolidinliquid\\ D.Air& 4.Asolutionofsolidinsolid\\ E.Hydrogengasinpalladlum& 5.Asolutionofgasinliquid\\ & 6.Asolutionofliquidinsolid\end{array}$

Q. Which of the following is used for the preparation of colloids?

1. Bredig’s Arc Method
2. Mond Process
3. Van Arkel Method
4. Ostwald process

Q.

1. True
2. False

Q. The number of components in a binary solution are/is _______ .

1. 2
2. 3
3. 1
4. 4

Q. What is the difference between water and acidified water?

Q. What will be the elevation in boiling point for $13.44g$ of $CuC{l}_2$ dissolved in $1kg$ of water as solvent if $CuC{l}_2$ is fully ionised?
($K_b=0.52Kkgmo{l}^{-1}$
Molar mass of $CuC{l}_2=134.4g/mol$)

1. 0.05
2. 0.10
3. 0.16
4. 0.20

Q. The mixture which shows positive deviation from Raoult's law is

[NEET 2020]

1. Ethanol + Acetone
2. Acetone + Chloroform
3. Benzene + Toluene
4. Chloroethane + Bromoethane

Q. Fizziness appears on opening a bottle of cold drink.

Q.

What are solutions ? Explain the types of solutions with examples.

Q. Jia ate a papaya and threw all of its seeds around one place in her garden so that she could get a large number of papaya plants. But only a few seedlings grew. Why do you think this happened?

Q. If equal volume of ${BaCl}_2$ and $NaF$ solutions are mixed , which of these combination will give a precipitate?

Q. Explain homogenous and heterogenous conditions with an example.

Q. 1- find n-factor for salts Ena2co3

Q. Explain to me what is John teller effect with detail??

Q. If $M$ is molecular weight of solvent, $K_b$ is molal elevation constant, $T_b$ is its boiling point, $p^o$ is its vapour pressure at temperature $T$ and $p_s$, is vapour pressure of its solution having a non-volatile solute at $TK$, then:

1. $\frac{p^{\circ }-p_s}{p^{\circ }}=\frac{\Delta T_b}{K_b}\times M$
2. $\frac{p^{\circ }-p_s}{p^{\circ }}=\frac{K_b}{\Delta T_b}\times M$
3. $\frac{p^{\circ }-p_s}{p^{\circ }}=\frac{K_b}{\Delta T_b}\times \frac{M}{1000}$
4. $\frac{p^{\circ }-p_s}{p^{\circ }}=\frac{\Delta T_b}{K_b}\times \frac{M}{1000}$

Q. Liquid mixtures like milk and blood can be called solutions.

1. True
2. False