10th Class Science Sample Paper Science Olympiad Model Test Paper-21

  • question_answer
    An element X is in group no.13 of the periodic table. What is the formula of its oxide?

    A) \[{{X}_{3}}{{O}_{2}}\]

    B) \[X{{O}_{3}}\]

    C) \[{{X}_{2}}{{O}_{3}}\]

    D)  \[{{X}_{2}}{{O}_{5}}\]

    E)  None of these

    Correct Answer: C


You need to login to perform this action.
You will be redirected in 3 sec spinner