Dehydration of hydrates of halides of calcium, barium and strontium i.e., CaCl 2 6H 2 O, BaCl 2 .2H 2 O, SrCl 2 .2H 2 O, can be achieved by heating. These become wet on keeping in air. Which of the following statements is correct about these halides?

Question

Philoid · Accepted Answer

The substances get wet on contact with air as they are hygroscopic in nature and can absorb moisture around them. The tendency to form halide hydrates gradually decreases down the group. For example, MgCl₂ .8H₂O, CaCl₂.6H₂O, SrCl₂.6H₂O and BaCl₂.2H₂O. Hence, all the properties are correct and the correct answer is (iv).

Dehydration of hydrates of halides of calcium, barium and strontium i.e., CaCl26H2O, BaCl2 .2H2 O, SrCl2.2H2O, can be achieved by heating. These become wet on keeping in air. Which of the following statements is correct about these halides?

Dehydration of hydrates of halides of calcium, barium and strontium i.e., CaCl₂6H₂O, BaCl₂ .2H₂ O, SrCl₂.2H₂O, can be achieved by heating. These become wet on keeping in air. Which of the following statements is correct about these halides?