KVPY Sample Paper KVPY Stream-SX Model Paper-13

  • question_answer
    The alkaline earth metal nitrate that does not crystallize with water molecules, is:

    A) \[\text{Sr(N}{{\text{O}}_{\text{3}}}{{\text{)}}_{\text{2}}}\]

    B) \[\text{Mg(N}{{\text{O}}_{\text{3}}}{{\text{)}}_{\text{2}}}\]

    C) \[\text{Ca(N}{{\text{O}}_{\text{3}}}{{\text{)}}_{\text{2}}}\]

    D) \[\text{Ba(N}{{\text{O}}_{\text{3}}}{{\text{)}}_{\text{2}}}\]

    Correct Answer: D

    Solution :

    Smaller in size of center atoms more water molecules will crystallize, hence, Ba \[{{(\text{N}{{\text{O}}_{3}})}_{2}}\]is answer due to its largest size of +ve ion.


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