Electrolytes

Q.

The number of Faradays (F) required to produce $20\text{g}$of calcium from molten${\mathrm{CaCl}}_2$ is:

1. $1$

2. $2$

3. $3$

4. $4$

Q. Which of the following is non-electrolyte?

1. $C_{12}{H}_{22}{O}_{11}$
2. $C{H}_{3}COOH$
3. $NaCl$
4. $CaC{l}_2$

Q. Which of the following solutions will have the highest specific conductance?

1. $0.01MNaCl$
2. $0.01MC{H}_{3}COOH$
3. $0.01MN{H}_{4}Cl$
4. $0.01M{K}_{2}S{O}_4$

Q.

Write The Four Properties Of Ionic Compounds.

Q.

The variation of molar conductivity with concentration of an electrolyte X in aqueous solution as shown in figure.

1. $\mathrm{HCl}$

2. ${\mathrm{CH}}_3\mathrm{COOH}$

3. $\mathrm{NaCl}$

4. ${\mathrm{KNO}}_3$

Q.

How to find deliquescent compounds and which compound is deliquescent:-

a) Hg2Cl2

b) HgCl2

c) ZnCl2

d) CdCl2

Q.

Identify the weak electrolyte from the following

1. Sodium chloride solution

2. Dilute Hydrochloric acid

3. Dilute Sulfuric acid

4. Aqueous acetic acid

Q. Which of the following is not a strong electrolyte ?

1. Fused NaCl
2. Dilute perchloric acid
3. Acetic acid
4. Aqueous NaOH solution

Q.

Explain how sodium ion is formed?

Q.

What is the difference between ionization and dissociation?

Q.

Is hydrochloric acid a non-electrolyte?

Q.

Colligative properties depend on ____________.

1. The nature of the solute particles dissolved in solution.
   
2. The physical properties of the solute particles dissolved in solution.
3. The number of solute particles in solution.
   
4. The nature of solvent particles.
   

Q. The aqueous solution of sugar does not conduct electricity. However, when sodium chloride is added to water, it conducts electricity. How will you explain this statement on the basis of ionization and how it is affected by concentration of sodium chloride?

Q.

Can $\mathrm{NaCl}$ conduct electricity?

Q. 20. How many molecules of chlorine should be deposited from molten NaCl in 1 minute by current of 300mA

Q. The chromate ion in acidic medium changes to __________

1. $Cr{O}_4^{2-}$
2. $C{r}_3{O}_{10}^{2-}$
3. $C{r}_2{O}_7^{2-}$
4. none of these

Q.

Mineral acids are stronger acids than carboxylic acids because

(i) mineral acids are completely ionized

(ii) carboxylic acids are completely ionized

(iii) mineral acids are partially ionized

(iv) carboxylic acids are partially ionized

1. (i) and (iv)

2. (ii) and (iii)

3. (i) and (ii)

4. (iii) and (iv)

Q.

Is calcium hydroxide a good conductor of electricity?

Q.

Comment on the Acidic and Basic nature of Amino Acids.

Q. Which of the following is the best electrolyte:

1. 
2. Vinegar solution
3. Sugar solution
4. Salt solution

Q.

Molten $AlC{l}_3$ is a poor conductor of electricity while hydrated $AlC{l}_3$ is a very good conductor. How do you account for this? Also explain the
nature of bonding in the product.

Q.

Define the following term:

Strong and weak electrolyte

Q.

Name two strong and two weak bases.

Q.

Which of the following statement is correct?

1. +I effect stabilises a carbocation

2. +I effect stabilises a carbanion

3. -I effect stabilises a carbocation

4. -I effect stabilises a carbanion

Q.

During electrolysis of acidulated water, which gas is collected at cathode and which gas is collected at anode?

1. Hydrogen, Oxygen
2. Oxygen, Hydrogen
3. Hydronium, Hydroxyl
4. None of the above

Q. Calculate the percentage ionization of $0.01M$ acetic acid in $0.1MHCl.K_a$ of acetic acid is $1.8\times {10}^{-5}$.

1. $0.18\%$
2. $0.018\%$
3. $1.8\%$
4. $18\%$

Q. What are weak and strong bases?

Q. when the coordination number of an ionic crystal (say CsCl) changes with change in temperature and pressure is there any change in the density of the unit cell?

Q. What is the difference between electrolytic dissociation and ionization?

Q. What is ionic mobility of halogens