In a galvanic cell________________?
A. Chemical energy is converted into electricity B. Chemical energy is converted into heat C. Electrical energy is converted into chemical energy D. Electrical energy is converted into heat
Chemistry MCQs
Molten NaCl conducts electricity due to the presence of_______________?
A. Free electrons B. Free molecules C. Free ions D. Atoms of Na and Cl
Electricity in voltaic cell is produced due to_________________?
A. neutralization B. oxidation C. reduction D. both B & C
In electrolytic cell electricity carries________________?
A. spontaneous reaction B. non-wpontaneous reaction C. neutralization D. all of above
In Galvanic cell electrons flow from anode to cathode through__________________?
A. external electric circuit B. salt bridge C. movement of ions D. all of the above
For the measurement of standard electrode potential Zn is dipped in________________?
A. 1 M ZnO solution B. 1 M ZnSO4 solution C. 1.5 M ZnSO4 solution D. 0.1 M ZnSO4 solution
Zn(s)/Zn+2(aq) 1M | | Cu+2(aq) 1M/Cu(s) is representation of reaction in______________?
A. Daniel cell B. Downs cell C. Voltaic cell D. Nelsons cell
Voltaic cell can be recharged by______________?
A. by addition of fresh solution B. by replacing external circuit with external source of electricity C. by removal of solution D. by heating it
H2 gas in SHE is filled at pressure of___________________?
A. 760mm of Hg B. 750mm of Hg C. 780mm of Hg D. 800mm of Hg
Chemical used in salt bridge is________________?
A. KOH B. KCI C. KNO3 D. KBr