Electrolysis And Storage Of Batteries Set 3

Flat discharge current-voltage curve ✘ High power to weight ratio ✘ Comparatively longer shelf life under adverse conditions of high temperature and humidity ✘ All of the above ✔

excessive gassing will occur ✘ temperature rise will occur ✘ bulging and buckling of plates will occur ✘ all above will occur ✔

copper ✘ lead ✘ iron ✘ silver oxide ✔

bakelite ✘ rubber ✘ nickel plated steel ✘ aluminium ✔

nickel hydroxide ✘ powdered iron and its oxide ✘ 21% solution of kOH ✘ all of the above ✔

compactness ✘ lower e.m.f. ✘ small quantity of electrolyte used ✘ higher internal resistance ✔

Deniell cell ✘ Leclanche cell ✘ Lead-acid cell ✘ Edison cell ✔

dilute sulphuric acid ✘ concentrated sulphuric acid ✘ NaOH ✘ kOH ✔

positive active material ✘ negative active material ✘ passive material ✘ none of the above ✔

chlorine ✘ dust particles ✘ lead crystals ✘ iron ✔