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     EduGorilla 
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    Directions: The following question consists of an Assertion (A) and Reason (R). Use the following to mark the appropriate answer.

    Assertion (A): Gases are easily adsorbed on the surface of metals, especially transition metals.
    Reason (R): Transition metals have free valencies.

    Options :-

    1. Both (A) and (R) are correct and (R) is the right explanation of (A).
    2. Both (A) and (R) are correct, but (R) is not the right explanation of (A).
    3. (A) is correct, (R) is incorrect.
    4. (A) is incorrect, (R) is correct.
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