A) X is a non-metal and belongs to the third period while Y is a metal and belongs to the fourth period.
B) One of two oxides has three-dimensional polymeric structure.
C) Both [a] and [b] are correct.
D) None of the above.
Correct Answer: C
Solution :
[c] Two oxides present in bauxite as an impurity are \[Si{{O}_{2}}\] and\[F{{e}_{2}}{{O}_{3}}.\] Si belongs to the third period and Fe to the fourth period. \[Si{{O}_{2}}\] has a three dimensional structure.
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