1461. Which of the following chemcial reactions is always spontaneous ?
A .Exothermic and increasing disorder *
B. Exothermic and decreasin disorder
C. Endothermic and increasing disorder
D. Endothermic and decreasing disorder
1462. In a process in which volume remains constant :
A. Isothermal
B. Isochoric *
C. Isobaric
D. Adiabatic
1463. If a gas at constant temperature and pressure expands; then its internal energy ______:
A. Increases
B. Decreases *
C. Remains constant
D. None of the above
1464. Branch of chemistry which deals with inter-conversion of electrical and chemical energy is called :
A. Electrochemistry *
B. Kinetics
C. Chemical thermodynamics
D. Thermochemistry
1465. Laws of electrolysis was presented ;
A. Faraday *
B. Rutherford
C. Henry
D. Moseley
1466. The electric charge for electrode deposition of one gram-equivalent of substance is :
A. Charge on one mole of electrons *
B. One ampere per second
C. One ampere for one hour
D. One coulomb for one second
1467. When same amount of electricity is passed through two electrolytic cells, the ratio of masses of substances obtined at cathodesis equal to the ratio of their :
A. Densities
B. Atomic Masses
C. Equivalent masses *
D. Atomic Numbers
1468. Which of the following Metal cannot be obtained by electrolysis of Aq-solution of their salts ?
A. Ag
B. Cu
C. Na *
D. Au
1469. Which of the following is not an example of electrolytic cell ?
A. Nelson’s cell
B. Daniel cell *
C. Down’s cell
D. All of the above
1470. Anode used in Dry cell is :
A. Cu
B. Graphite
C. Zn*
D. Fe