Chemistry
When a compound was electrolysed using inert electrodes, the gas released at the anode made a glowing splinter rekindle. The electrolyte that will not produce such gas observation at the anode is:
- diluted solution of NaCl.
- concentrated solution of NaCl.
- diluted solution of copper sulphate.
- acidified water.
Electrolysis
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Answer
concentrated solution of NaCl.
Reason — A gas released at the anode that caused a glowing splinter to rekindle is oxygen gas (O2). Concentrated solution of NaCl doesn't produce oxygen gas but it produces Chlorine which does not rekindle a glowing splinter.
Whereas, dilute HCl, dilute copper sulphate and acidified water produce oxygen gas when they are electrolysed using inert electrodes.
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