1.

If R_(1) and R_(2)are the resistance of two solution of equal volume, then the conductance of the mixture in the same conductivity cell is:

Answer»

`(1)/(2)((1)/(R_1) +(1)/(R_2))`
`(1)/(2)((1)/(R_(1)+R_(2)))`
`(1)/(sqrtR_(1) R_(2)`
none of these

Solution : `G_("net") = G_(1) + G_(2)`
`K_("net") = (V_(1) + V_(2))`, `K_("net") = (G_(1)G^astxxG_(2)G^astV)/(2V)` , `K_("net") = (1)/(2)((1)/(R_(1)+ (1)/(R_(2))))G^ast = G_("net") G^ast`


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