Multiple choice

Among the following, the hygroscopic compound is

  1. cerium(IV) sulfate

  2. chromic acid

  3. chromium(II) chloride

  4. chromium(III) oxide
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C Correct answer
Explanation

Chromium(II) chloride is the chemical compound with the formula CrCl2. This white, crystalline solid is used for the synthesis of other chromium complexes. CrCl2 is hygroscopic.It is used as a precursor to other inorganic and organometallic chromium complexes. Alkyl halides and nitroaromatics are reduced by CrCl2.

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