- Special Notes Prepared for GPAT/NIPER-JEE Exams.
- Prepared Exclusively by GPATOnline Experts Team.
- Detailed and Specific Solution.
- Available Online and Printed Format
2. trigonal pyramidal
4. square planar
Ans: 2. trigonal pyramidal
In polarography the substance to be analyzed undergoes electrolysis under the
influence of potential difference result in generation of current in electrolytic cell.
Polarograph: An electrical apparatus used for supplying voltage for electrolysis of an
electrolyte is called polarograph – it consist of potentiometer, an electrolyte cell or
polarographic cell and galvanometer.
Polarographic wave –voltage relationship of polarogram
id = 607 n D1/2 c m2/3 t1/6
id = diffusion current during life of drop (amperes)
607 = constant generated from π, faraday constant and density of mercury
n = the number of electrons involved
D = the diffusion coefficient in cm2 s-1