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  5. The p-Block Elements-I / p-ब्लॉक के कुछ तत्व-I

12th Class Chemistry The p-Block Elements-I / p-ब्लॉक के कुछ तत्व-I Question Bank MCQs - The p-Block Elements

  • question_answer
    The oxidation state of sulphur in the anions \[SO_{3}^{2-}\], \[{{S}_{2}}O_{4}^{2-}\] and \[{{S}_{2}}O_{6}^{2-}\] follows the order

    A) \[{{S}_{2}}O_{6}^{2-}<{{S}_{2}}O_{4}^{2-}<SO_{3}^{2-}\]

    B) \[{{S}_{2}}O_{4}^{2-}<SO_{3}^{2-}<{{S}_{2}}O_{6}^{2-}\]

    C) \[SO_{3}^{2-}<{{S}_{2}}O_{4}^{2-}<{{S}_{2}}O_{6}^{2-}\]

    D) \[{{S}_{2}}O_{4}^{2-}<{{S}_{2}}O_{6}^{2-}<SO_{3}^{2-}\]

    Correct Answer: B

    Solution :

    \[\overset{+3}{\mathop{{{S}_{2}}O_{4}^{2-}}}\,<\overset{+4}{\mathop{SO_{3}^{2-}}}\,<\overset{+5}{\mathop{{{S}_{2}}O_{6}^{2-}}}\,\]


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