CrO₃ dissolves in aqueous NaOH to give
(a) Cr₂O²⁻₇ (b) CrO²⁻₄
(c) Cr(OH)₃ (d) Cr(OH)₂
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Answer:
b) CrO²⁻₄
Explanation:
CrO3+ 2 NaOH= Na2CrO4 + H2O
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