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If a salt solution containing Fe^(2+) is...

If a salt solution containing `Fe^(2+)` is not treated with a few drops of `HNO_(3)` before starting for group III the ppt. obtained in group III will be

A

redish brown in colour

B

dirty green in colour

C

black

D

white

Text Solution

Verified by Experts

If `Fe^(2+)` ions are not oxidised to `Fe^(3+)` ions before proceeding for group III, dirty green ppt. of `Fe(OH)_(2)` will be obtained.
`Fe^(2+) +2NH_(4)OH to underset("Dirty green")(Fe(OH)_2)+NH_(4)^(+)`
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DINESH PUBLICATION-PRINCIPLES RELATED TO PRACTICAL CHEMISTRY-Brain teasers-40
  1. If a salt solution containing Fe^(2+) is not treated with a few drops ...

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