10th Class Science Metals and Non-metals / धातु और अधातु Question Bank Metals and Non-Metals

  • question_answer
    Chemical formula of washing soda is

    A) \[\text{N}{{\text{a}}_{\text{2}}}\text{C}{{\text{O}}_{\text{3}}}\]                            

    B)  \[\text{N}{{\text{a}}_{\text{2}}}\text{C}{{\text{O}}_{\text{3}}}.10{{H}_{2}}O\]  

    C)  \[\text{N}{{\text{a}}_{\text{2}}}\text{C}{{\text{O}}_{\text{3}}}.5{{H}_{2}}O\]  

    D)         \[\text{N}{{\text{a}}_{\text{2}}}\text{C}{{\text{O}}_{4}}.10{{H}_{2}}O\]

    Correct Answer: B

    Solution :

    Not Available


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