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JEE Main & Advanced Chemistry The p-block Elements-II / p-ब्लॉक तत्व-II Question Bank Self Evaluation Test - The p-Block Elements (Group 13 and Group 14)

  • question_answer
    A group 14 element is oxidised to form corresponding oxide which is gaseous in nature, when dissolved in water pH of the water decreases further addition of group 2 hydroxides leads to precipitation. This oxide can be

    A) \[Ge{{O}_{2}}\]                       

    B) CO

    C) \[C{{O}_{2}}\]                        

    D) \[Sn{{O}_{2}}\]

    Correct Answer: C

    Solution :

    [c] \[C{{O}_{2}}\] forms carbonic acid \[{{H}_{2}}C{{O}_{3}},\] when dissolved in water, CO is neutral, whereas other two \[Ge{{O}_{2}}\] and \[Sn{{O}_{2}}\] are solids.


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