1.

An element (X) forms compounds of the formula \[XC{{l}_{3}},\] \[{{X}_{2}}{{O}_{5}}\] and \[C{{a}_{3}}{{X}_{2}},\] but does not form \[XC{{l}_{5}}\], which of the following is the element \[X\] [MP PET 1997]

A. \[B\]
B. \[Al\]
C. \[N\]
D. \[P\]
Answer» D. \[P\]


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