Multiple choice

When the potassium cobaltonitrite is treated with acetic acid in presence of air to formed yellow crystals?

  1. Fischer salt

  2. Rochella salt

  3. Chrome alum

  4. Burnt alum

  5. Hydrolith
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A Correct answer
Explanation

This option is correct because the potassium cobaltonitrite are treated acetic acid in presence of air to formed the potassium cobaltenitrite K3[Co(NO2)6],this salt is called as fischer salt.it is the yellow colored crystals

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