Title DPP 1 Solutions.pdf ✅

Class : XIIth Subject : CHEMISTRY Date : DPP No. : 1 1 (c) Al →Al3+ + 3e ― The charge required = 3 × 96500 C 2 (b) Eq. of H2 = Eq. of Cu ∴ 0.504 1 = W 63.5/2 ∴ WCu = 16 g 3 (a) E° = 0.059 n logKeq and ∆G° = ― nE°F ∴ ∆G° = +ve, E° will be ― ve and Keq < 1; one should not write ∆G° > 0. 4 (d) E ° cell = 0.87 + 0.40 = 1.27 V Cell reaction :Fe + Ni2O3→FeO + 2NiO 5 (a) The given values areE ° RP. More is E ° RP more is the tendency to gain electron or to show reduction or to show strong oxidant nature. 6 (d) E ° cell = E ° OPSn +E ° RPFe = 0.14 + (⎯0.44) = ―0.30 V 8 (a) Smallest ion possesses maximum mobility. 9 (a) Λ 0 M = Λ 0 a + Λ 0 c 10 (c) Molten NaCl possesses Na + and Cl ― ions. 11 (a) Given, that Zn / Zn2+ || Cu2+ / Cu ∴ Zn is anode and Cu is cathode. Topic :- Electro Chemistry Solutions