8th Class Science Sample Paper Science Olympiad Model Test Paper-20

  • question_answer
    Some terms are missing in the table given below. Choose the correct option to complete the table.
               Chemical properties of metals
    Metal Reaction with water Reaction with dilute HCL
    \[\underline{\,\,\,\,P\,\,\,\,}\] Reacts violently Reacts violently
    Mg Reacts with\[\underline{\,\,\,\,Q\,\,\,\,}\]and \[\underline{\,\,\,\,R\,\,\,\,}\] Reacts to give salt and\[{{H}_{2}}\]
    \[\underline{\,\,\,\,S\,\,\,\,}\] Reacts only with steam Reacts to give salt and\[\underline{\,\,\,\,T\,\,\,\,}\]
    \[\underline{\,\,\,\,U\,\,\,\,}\] Does not react Does not react

    A) P-sodium, Q-hot water, R-steam, S-copper, T-water, U-gold

    B) P-potassium, Q-hot water, R-steam, S-zinc, T-hydrogen, U-gold

    C) P-potassium, Q-cold water, R-steam, S-zinc, T-water, U-silver

    D) P-aluminium, Q-hot water, R-steam, S-copper, T-hydrogen, U-gold

    E) None of these

    Correct Answer: B


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