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NEET Sample Paper NEET Sample Test Paper-92

  • question_answer
    Iron sulphide is heated in air to form A, an oxide of sulphur. A is dissolved in water to give an acid. The basicity of this acid is

    A) 2         

    B)        3    

    C) 1                     

    D)        Zero

    Correct Answer: A

    Solution :

    [a] \[4FeS+7{{O}_{2}}\to 2F{{e}_{2}}{{O}_{3}}+4S{{O}_{2}}\] \[S{{O}_{2}}+{{H}_{2}}O\to {{H}_{2}}S{{O}_{3}}2{{H}^{+}}+SO_{3}^{2-}\] It is dibasic


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