Electro Chemistry English Electro Chemistry English 1 / 20When one faraday of electric current is passed, the mass deposited, is equal to One gram equivalent One gram mole Electrochemical equivalent Half gram equivalent 2 / 20Which of the following electrolytic solution has the least specific conductance 0.02 N 0.2 N 2N 0.002 N 3 / 20If a salt bridge is suddenly removed from the cell, then the voltage of the cell- increases decreases becomes zero can be increase or decrease this depends on the cell reaction 4 / 20One coulomb is equal to – 96500 faraday charge of 6.24 x 1018 electrons charge on one electron None of these 5 / 20If 96500 coulomb of electricity is passed through CuSO4 solution. It will liberate- 63.5 g Cu 31.76 g Cu 96500 g Cu 100 g Cu 6 / 20Fused NaCl on electrolysis gives......... on cathode. chlorine sodium sodium amalgam hydrogen 7 / 20Which among the following is the strongest oxidising agent- F₂ CL₂ Br₂ I₂ 8 / 20Which of the following is a secondary cell? Leclanche cell Lead storage battery Concentration cell All of these 9 / 20Faraday's 2nd law of electrolysis are related to – Atomic number of the cation Atomic number of the anion Equivalent weight of the electrolyt Speed of cation 10 / 20The device in which the combustion energy of fuels hydrogen and methane is directly converted into electrical energy is called. Dynamo Ni-cd cell fuel cell electrolytic cell 11 / 20With increase in temperature, the conductivity of metal- increases decreases remains unchanged becomes doubled 12 / 20The electrolytes that ionise completely in water are called- strong electrolytes weak electrolytes strong and weak electrolytes metallic conductors 13 / 20Which of the following is not a non electrolyte? CH3COOH glucose CH3CH2OH Urea 14 / 20Zn(s)|Zn2+(aq.)||Cu2+(aq.)|Cu(s) is. The given reaction represens the (anode) (Cathode) Following cell – (A) Weston cell Daniell cell Standard cell None of these 15 / 20The unit of conductivity is- ohm-1 ohm-1 cm-1 ohm-1 cm-2 equiv-1 ohm-1 cm-2 16 / 20Which among the following halogen acids is the strongest reducing agent ? HCl HBr HI HF 17 / 20The limiting molar conductivities of NaCl,KBr and KCl are 126,152 and 150 S cm2 mol-1 respectively ^0 for NaBr is – 278 S cm-1mol-1 175 S cm2 mol-1 128 S cm2 mol-1 302 S cm2 mol-1 18 / 20A solution of Na2SO4 was electrolysed by using some inert electrodes. The products at the electrodes are – O2,H2 O2,Na O2,SO2 O2,S2O 19 / 20Which among the following is obtained at anode by the electrolysis of dilute solution of H2SO4 is – H2 SO4-2 SO2 O2 20 / 20Which of the following is an insulator ? Graphite Alumininum Diamond Silicon Your score isThe average score is 74% 0% Restart quiz
