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  3. 10th Class
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10th Class Science Sample Paper Science Olympiad Model Test Paper-1

  • question_answer
    What happens to the reactivity of group 1 elements on moving down the group?               

    A) Increases   

    B) Decreases                                 

    C) Remains unchanged                       

    D) First decreases then increases         

    E) None of these

    Correct Answer: A

    Solution :

    Not Available                                 


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