Chemical used in salt bridge is
A. KOH
B. KCI
C. KNO3
D. KBr
Chemical used in salt bridge is Read More »
Chemistry
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
H2 gas in SHE is filled at pressure of Read More »
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
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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
Zn(s)/Zn+2(aq) 1M | | Cu+2(aq) 1M/Cu(s) is representation of reaction in Read More »
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
For the measurement of standard electrode potential Zn is dipped in Read More »
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
In Galvanic cell electrons flow from anode to cathode through Read More »
In electrolytic cell electricity carries
A. spontaneous reaction
B. non-wpontaneous reaction
C. neutralization
D. all of above
In electrolytic cell electricity carries Read More »
Electricity in voltaic cell is produced due to
A. neutralization
B. oxidation
C. reduction
D. both B & C
Electricity in voltaic cell is produced due to Read More »
Molten NaCl conducts electricity due to the presence of
A. Free electrons
B. Free molecules
C. Free ions
D. Atoms of Na and Cl
Molten NaCl conducts electricity due to the presence of Read More »
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
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