A) \[XS{{O}_{4}}\] and \[{{X}_{2}}{{(P{{O}_{4}})}_{3}}\]
B) \[{{X}_{2}}{{(S{{O}_{4}})}_{3}}\] and \[XP{{O}_{4}}\]
C) \[X{{(S{{O}_{4}})}_{2}}\] and \[X{{(P{{O}_{4}})}_{2}}\]
D) \[{{X}_{2}}S{{O}_{4}}\] and \[{{X}_{3}}P{{O}_{4}}\]
Correct Answer: B
Solution :
Formula of oxide \[={{X}_{2}}{{O}_{3}}\] \[\Rightarrow \]Valency of \[X=+3\] \[\therefore \] Formula of sulphate \[={{X}_{2}}{{(S{{O}_{4}})}_{3}}\] and phosphate \[\text{= XP}{{\text{O}}_{\text{4}}}\]
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