A. Reduction occurs at anode
B. K+ ion transfer from the salt bridge to left beaker of ZnSO4
C. Oxidation occurs at the cathode
D. Anode is negatively charged

A. Oxidation potential
B. Redox potential
C. e.m.f of cell
D. standard reduction potential

A. 8
B. 5.1
C. 6
D. one/fifty one

A. N2+3H2 2NH3
B. H2+I2 2HI
C. 2NO2 N2H4
D. PCI5 PCI3+CI2

A. X–ray diffraction
B. Spectrophotometer
C. Optical microscope
D. Electron microscope

A. Plancks theory
B. Dual nature of matter
C. Heisenberg uncertainty principle
D. All of these

A. CaF2
B. NaCl
C. Glass
D. Diamond

A. Fluorescent bulb
B. Neon signs
C. Lasers
D. All of these

A. Both a and b are small
B. Both a and b are large
C. a is small and b is large
D. a is large and b is small

A. Hot air currents
B. folds of filter paper
C. oven
D. Vacuum desiccator