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Name the substance used in salt-bridge....

Name the substance used in salt-bridge.

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**Step-by-Step Solution:** 1. **Understanding the Purpose of a Salt Bridge:** - A salt bridge is used in electrochemical cells to maintain electrical neutrality by allowing the flow of ions between the two half-cells. 2. **Identifying the Characteristics of the Substance:** - The substance used in a salt bridge should be an inert electrolyte. This means it should not react chemically with the solutions in the half-cells. 3. **Examples of Suitable Substances:** - Common examples of substances used in salt bridges include potassium chloride (KCl) and ammonium chloride (NH4Cl). These substances are chosen because they dissociate into ions in solution and do not participate in the redox reactions occurring in the cell. 4. **Conclusion:** - Therefore, the substances commonly used in salt bridges are KCl and NH4Cl. **Final Answer:** - The substances used in a salt bridge are KCl (potassium chloride) and NH4Cl (ammonium chloride). ---
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Knowledge Check

  • A salt bridge.

    A
    allows the flow of current by completing the electrical circuit
    B
    allows easy intermixing of the lons in the two half cells.
    C
    eliminates liquid junction potential
    D
    maintains the electrical neutrality of the two half cells.

  • A salt bridge

    A
    allows the flow of current by completing the electrical circuit.
    B
    allows easy intermixing of the ions in the two half cells
    C
    elimination liquid junction potential
    D
    maintains the electrical neutrility of the two h alf cells.

  • Name the substance which is used in lubrication :

    A
    Lubricating oil
    B
    Lubricating fibre
    C
    Both of the above
    D
    None of the above

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    Statement - I. Salt bridge is used in Electro chemical cell. Statement - II. The ions of the electrolyte used in salt bridge should have almost same ionic mobility

    KCl is used in salt bridge because:

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