NTSE Sample Paper NTSE SAT Practice Test-19

  • question_answer
    Chemically rust is                  

    A) Hydrated ferrous oxide         

    B) Hydrated ferric oxide      

    C) Only ferric oxide               

    D) none of these                    

    Correct Answer: B

    Solution :

    [b] It is \[F{{e}_{2}}{{O}_{3}}\times {{H}_{2}}O.\]     


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