Working of Salt Bridge

Q. What is the purpose of the salt bridge?

1. Maintains the electric neutrality in internal circuit.
2. It transfers the electrons from negative rod to positive rod.
3. Cools down the cell by injecting ions into electrolytes.
4. It transfers the protons from negative rod to positive rod.
5. It transfers the protons from negative rod to positive rod.

Q.

Sodium chloride was used as an important symbol in our freedom struggle. Mahatma Gandhi and his followers did Dandi march in order to stop the British government from increasing the price of common salt used daily by Indian people.

(a) What is rock salt? How is it formed?

Q. What is the mass of Cl2 obtained on passing 1A current through NaCl solution for 30mins ?

Q.

Name the following:

Salt referred to as Bengal saltpetre.

Q.

The shape of a salt bridge is

1. Helical

2. U-tube

3. Circular

4. Spiral

Q.

Differentiate between Deliquescence and Efflorescence.

Q.

Which of these is an odourless and colourless gas?

1. Methane

2. Ammonia

3. Ozone

4. Chlorine

Q.

During her summer internship, Riya visited an industrial unit that uses common salt to manufacture a few important chemical compounds. After completing the internship, she drew a flowchart as shown below.

Identify the component that she failed to represent correctly in the flowchart.

Q. Give 5 examples of insoluble salts in water

Q. In the experiment set up for the measurement of EMF of a half cell using a reference electrode and a salt bridge, when the salt bridge is removed, the voltage

1. Does not change
2. Decreases to half the value
3. Drops to zero
4. Increase to maximum

Q. What is the work of salt bridge?

1. Cools down the cell by injecting ions into electrolytes.
2. Maintains the electric neutrality in internal circuit.
3. It transfers the electrons from negative rod to positive rod.

Q. A cell contains two hydrogen electrodes . The negative electrode is in contact with a solution of 10 power -5 M H+ ions . The emf of the cell is 0.118 V at 298 K . Calculate the concentration of the H+ ions at the positive electrode .

Q. <!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> Lithium, sodium and potassium together form a Döbereiner's triad.

1. True
2. False

Q.

Which of the following salts is not used in a salt bridge?

1. Potassium chloride

2. Sodium chloride

3. Ammonium chloride

4. Potassium nitrate

Q.

KCl is used as salt bridge Because,

i)It provides equal number of $K^{+}$ and $C{l}^{-}$ ions.

ii)$KCl$ as a salt bridge maintains neutrality in the system.

1. none

2. Only i) is true

3. Only ii) is true

4. Both i) and ii) are true

Q.

Which of the following options is not correct regarding a salt bridge?

1. Maintains electrical neutrality of cell

2. Salt bridge is a straight tube

3. Contains gelatin mixed with $KCl$

4. It completes the circuit by transfer of ions.

Q. In the experiment set up for the measurement of EMF of a half cell using a reference electrode and a salt bridge, when the salt bridge is removed, the voltage

1. Does not change
2. Decreases to half the value
3. Increase to maximum
4. Drops to zero

Q. What is activation energy