Measurement of the coonductivity of electrolytic solutions is done with the helpof Wheatstone bridge using a/anA. batteryB. induction coilC. conductivity cellD. both (2) and (3)

Measurement of the coonductivity of electrolytic solutions is done wit

1.	Measurement of the coonductivity of electrolytic solutions is done with the helpof Wheatstone bridge using a/anA. batteryB. induction coilC. conductivity cellD. both (2) and (3)
Answer» Correct Answer - D Induction coil, an alternating current `(A)` source of power is used to nullify the electrolysis of the electrolyte while conductivity cell is used to connet the electrolytic solution to the bridge like a matallic wire or other solid conductor. Galvanometer is replaced by an earphone bacause when `AC` source is used, ordinary galvanometer fails to detect the null point.

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Define molar conductivity of a solution and explain how molar conductivity changes with change in concentration of a solution for a weak and a strong electrolyte.
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Based on the data given below, the correcy order of reducing power is: `Fe_((aq.))^(3+) + e rarr Fe_((aq.))^(2+), E^(@) = +0.77 V` `Al_((aq.))^(3+) + 3e rarr Al_((s)), E^(@) = -1.66 V` `Br_(2(aq.)) + 2e rarr 2Br_((aq.))^(-), E^(@) = +1.08 V`A. `Br^(-) lt Fe^(2+) lt Al`B. `Fe^(2+) lt Al lt Br^-`C. `Al lt Br^(-) lt Fe^(2+)`D. `Al lt Fe^(2+) lt Br^(-)`
What are elementary reactions ?

Measurement of the coonductivity of electrolytic solutions is done with the helpof Wheatstone bridge using a/anA. batteryB. induction coilC. conductivity cellD. both (2) and (3)

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