NEET Sample Paper NEET Sample Test Paper-34

  • question_answer A coating of cobalt that is \[0.005\text{ }cm\]thick is deposited on a plate, that is \[0.5\text{ }m\]in area. How many atoms of cobalt were deposited on the plate. While density of cobalt is \[9.5\text{ }gm/cm\]. (Atomic weight of cobalt = 59)

    A)  \[24\times {{10}^{23}}\]         

    B) \[~2.4\times {{10}^{23}}\]

    C)   \[1.0\times {{10}^{23~}}\]

    D)  \[0.024\times {{10}^{23}}\]

    Correct Answer: A

    Solution :

    Not available

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