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JEE CHEMISTRY MCQ: d & f- BLOCK ELEMENTS
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If '' gives coloured ppt. with solution, then '' will not be respond to which of the following
If '' gives coloured ppt. with solution, then '' will not be respond to which of the following
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Correct option: B
The reaction produces NaI (X) and NaIO3 (Y). NaI gives a colored precipitate with lead acetate. NaIO3 is an oxidizing agent and will not oxidize Cr2O72- in a basic medium. Therefore, the correct answer is B.
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Statement-II: Both ions are having same number of unpaired electrons. The most common oxidation state of Lanthanoid
elements is +3. Which of the following is likely to
also form other oxidation state? A mixture of and is called