Why is base (KOH) needed for the luminol to exhibit luminescence?

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Expert Solution

Luminol is the chemical substance that produces luminescence when it comes in contact with the blood. It is activated with an oxidant such as hydrogen peroxide and a base such as KOH, to exhibit its property.

Luminol reacts with the hydroxide ions from the KOH and forms a dianion . This dianion then reacts with the oxygen which is produced from the hydrogen peroxide . This produces an unstable organic peroxide , which is formed by the loss of a nitrogen molecule , the change of electron from the excited state to the ground state , and the emission of energy as photons that produces a blue glow.

queen_honey_blossom answered 1 year ago

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