Electrolytic and Metallic Conduction

IMPORTANT

Electrolytic and Metallic Conduction: Overview

This topic covers concepts such as Electrical Conductivity, Electrical Conductors, Electrical Insulators, Metallic Conductors, Resistance of a Metallic Wire, Electrolytes, Mechanism of Electrolytic Conductors, Specific Resistance, Conductance, etc.

Important Questions on Electrolytic and Metallic Conduction

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IMPORTANT

Which of the following express the relation among cell constant, resistance of the solution in the cell and conductivity of the solution?

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The molar conductivity of a 1.5 M solution of an electrolyte is found to be 138.9 S cm2 mol-1. Calculate the conductivity of the solution?

EASY
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The conductance of metallic substance is because of

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The resistance of a conductivity cell when filled with 0.05 M solution of an electrolyte X is 100 ohms at   40°C.  The same conductivity cell filled with 0.01 M solution of electrolyte Y has a resistance of 50 ohms. The conductivity of 0.05 M solution of electrolyte X is   1.0× 10 4 Sc m 1 .  The cell constant, conductivity and molar conductivity of 0.01 M of solution Y would be:

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What is the conductivity range of insulators?

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What is the conductivity range of semi-conductors?

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What is the range of conductivity in conductors?

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Give any two differences between metallic and electrolytic conduction.

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Identify a substance which is not an electrical insulator.

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Write few examples for electrical insulators.

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What are electrical insulators?

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The resistance of 0.01 M NaCl solution at 25°C is 200 Ω. The cell constant of conductivity cell is unity. Calculate the molar conductance.

A 500 S m2 mol-1.B 500 S cm-2 mol-1.C 500 S cm2 mol-1.

Enter your correct answer as A, B or C.

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Which of the following metal conductance through electrical conductance?

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Why electrical conductance occurs through metals only?

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Electrical conductance through _____ (metal / non-metal) is called electronic conductance.

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Conductivity of metallic conductors increases with increase in temperature.

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Conductivity of an electrolyte depends on its

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With increase in temperature ionic mobility of an electrolyte 

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What is the effect of temperature on conductivity of an electrolyte. 

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What is the SI unit of specific resistance? (ohm metre/ohm kg)