Multiple choice

Hygroscopic material absorbs moisture from the atmosphere. Which among the following zinc compounds is hygroscopic in nature?

  1. Zinc oxide

  2. Zinc iodide

  3. Zinc fluoride

  4. Zinc bromide
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Zinc bromide (ZnBr2) is a chemical compound of zinc and bromine. Its shares many properties with zinc chloride, ZnCl2, namely a high solubility in water forming acidic solutions, and solubility in organic solvents. It is hygroscopic and forms a hydrate ZnBr2.2H2O. It is used in oil and natural gas wells to displacing drilling mud when transistioning from the drilling phase to the completion phase or in well workover operations.

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