U1 T4 Final Electroanalytical Techniques

Mathematical statement of Ilkovik euqation is

•  $i_d=\ 607n\ D^{\frac{1}{2\ }}\ m^{\frac{2}{3}}\ t^{\frac{1}{6}}\ C$  

•  $i_d=\ 607n\ D^{\frac{2}{3}}\ m^{\frac{1}{2}}\ t^{\frac{1}{6}}\ C$  

•  $i_d=\ 706n\ D^{\frac{1}{2\ }}\ m^{\frac{2}{3}}\ t^{\frac{1}{3}}\ C$  

• Pass

Sensitivity of polarographic estimation can be as low as

• 10^-6M

• 10^-4M

• 10^-3M

• Pass

Polarography is a technique which deals with ______

• Polarization of light
• Dropping mercury electrode
• sat. KCl solution
• Pass

In polarography, wave height is equal to

• limiting current
• diffusion current
• decomposition potential
• Pass

Pilot ion method is same as

• standard addition method
• calibtation method
• internal standard method
• Pass

Capillary characteristic include

• m and t
• n and M
• D and t
• Pass

Dissolved oxygen in water can be eliminated using

• KCl electrolyte
• Triton 100-X
• Nitrogen
• Pass

When titrand (in beaker) is reducible and other species are not reducible, the amperometric titration curve us

• V shaped
• L shaped
• ɹ shaped
• Pass

In amperometric titration, the cathode is

• DME
• SCE
• Pt - wire
• Pass

Two reducible species in a solution can be estimated by polarography when their half wave potential differ by __<br />

• 0.2 V
• 0.4 V
• 0.02 V
• Pass