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  3. 8th Class
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  5. Materials : Metals and Non-metals

8th Class Science Materials : Metals and Non-metals Question Bank Metals and Non Metals Formative Sujective Problems

  • question_answer
    When steam is passed through zinc, then (a) Hydrogen gas is liberated (b) Zinc hydroxide is formed (c) Zinc oxide is formed                 (d) None

    Answer:

    \[Metal+Water(steam)\xrightarrow{{}}Metal\text{ }oxide+Hydrogen\] \[\underset{Zinc}{\mathop{Zn}}\,+{{H}_{2}}O\xrightarrow{{}}\underset{Zinc\,oxide}{\mathop{ZnO}}\,+{{H}_{2}}\]


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