Question

is used as supporting electrolyte in polarography.
A. Nacl
B. KCI
C. KBr
D. HCI
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Answer 1

Answer:

A. NACL IS THE CORRECT DUDE.

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Answer 2

NaCl is used as a supporting electrolyte in polarography.

• Polarography is a special type of separation technique used in both qualitative and quantitative analysis.
• Here the cathode is dropping Mercury electrode and the anode is mercury pool.
• Here the electroactive species is put in a solution of supporting electrolytes.
• Here the supporting electrolyte is NaCl.
• Hence, the correct option is A.