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10th Class Science Periodic Classification of Elements Question Bank Periodic Classification of Elements

  • question_answer
    Element 'X' forms a chloride with the formula \[XC{{l}_{2}}\], which is a solid with high melting point. Identify X.

    A) Na                                        

    B) \[Al\]      

    C) Mg                                       

    D) Si         

    Correct Answer: C

    Solution :

    The valency of X is 2 and \[XC{{l}_{2}}\], is a solid with high melting point. So, it must be an ionic compound and X being divalent belongs to II A group i.e., Mg.


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