Railways Sample Paper RRB (Group D) Sample Test Paper-8

  • question_answer
    Chemical formula of Water glass is-

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

    B)  \[A{{l}_{2}}{{O}_{3}}\]

    C)  \[NaA1{{O}_{2}}\]      

    D)  \[CaSi{{O}_{3}}\]

    Correct Answer: A


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