Question

30. Eºceli and DGº are related as :-
(a) AG° = NFE ºcell (b) AG = -nfEºcell (c) AG°= -nfe ºcell (d)AG°= nfe ºcell=0
71. When Icad storage battery discharges
(a) SO, is evolved (b) Pbso, is consumed (c) Lead is formed (D) H2SO4 is consumed.
12. 10800C of electricity through the electrolyte deposited 2.977 g of metal with atomc mass 106.4 amu
the valency of metal cat ion is
(a) 4
(6) 3
(c)2
(d) 1
13. The charge on 1 gram made 10n N° is
(A) 6*10°C (b) 2.89 x10°C (c) 3.98 x10°C (d) 4.89% 10
14. The emf of the cell
Cu(s)/Cu²+ (1M)// Ag+C(IM) /Ag is 0.46V. The standard reduction potential of Ag /Ag is 0.80V.
The Standard reduction potential of Cu-/Cu is
(-0.34 V (b) 1.26V (c) -1.26 V (d) 0.34v
15. Which of the following relations are not correct?
(a) m = K x1000 (b) K = Cx2 (c) RFBă (d)
= KX I
16. Which of following statements are not true?
(a) Molar conductivity of weak electrolytes is low as compared to that of strong electrolytes.
(b) Molar conductance of an electrolyte increases with dilution
(c) Conductivity of an electrolyte increases with decrease in temperature
(d) Conductivity of an electrolytic increase with increase in temperature

Answer 1

Which of following statements are not true?
(a) Molar conductivity of weak electrolytes is low as compared to that of strong electrolytes.
(b) Molar conductance of an electrolyte increases with dilution
(c) Conductivity of an electrolyte increases with decrease in temperature
(d) Conductivity of an electrolytic increase with increase in temperature←←