1. (b) Al displaces Zn from ZnSO₄ solution, Al is more reactive than Zn.

    (b) Al displaces Zn from ZnSO₄ solution, Al is more reactive than Zn.

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  2. The process of conversion of solid directly into vapour and vice versa is called sublimation.

    The process of conversion of solid directly into vapour and vice versa is called sublimation.

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  3. No. Because both are volatile substances and sublime on heating.

    No. Because both are volatile substances and sublime on heating.

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