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# Identify the correct formula of halides

Question:

Identify the correct formula of halides of alkaline earth metals from the following.

(i) BaCl2.2H2O

(ii) BaCl2.4H2O

(iii) CaCl2.6H2O

(iv) SrCl2.4H2O

Solution:

Option (i)  BaCl2.2H2O and (iii) CaCl2.6H2O are the answers.