Variation of Specific, Equivalent and Molar Conductivities with Concentration

Q. How does the graph of molar conductivity vs square root of concentration look like for NaCl?

1. 
2. 
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Q. ${\wedge }_m={\wedge }_m^o-k\sqrt{C}$ is valid for

1. Weak electrolytes only
2. strong electrolytes only
3. both weak and strong electrolytes
4. Non electrolytes

Q.

Conductivity of solution always decreases with decrease in concentration, both for weak and strong electrolytes.

1. True
2. False

Q.

define molar conductivity