Chemistry - Complete d-block Question with Solution | TestHub

ChemistryComplete d-blockd-blockEasy2 minPYQ_2020

ChemistryEasysingle choice

The addition of NaOH to $C r^{3 +}$ solution produces the precipitate of

Options:

Answer:

Solution:

$C r (O H)_{3}$ is not precipitated, but the hydrated oxide, $C r_{2} O_{3} (H_{2} O)_{n}$ is precipitated.
$C r^{3 +} + 3 O H^{-} \to C r (O H)_{3} \to C r_{2} O_{3} (H_{2} O)_{n}$

Stream:NTA_ABHYASSubject:ChemistryTopic:Complete d-blockSubtopic:d-block

⏱ 2mℹ️ Source: PYQ_2020

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