Multiple Choice Questions on An atom of iron is hellip Times as heavy as atom of hydrogen ........ for UPSC EPFO Exam Preparation

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    An atom of iron is …. Times as heavy as atom of hydrogen.

    23

    Incorrect Answer

    1638

    Incorrect Answer

    55

    Correct Answer

    238

    Incorrect Answer
    Explanation:

    - An iron atom's approximate atomic weight is 56 unified atomic mass units (u).

    - A hydrogen atom's approximate atomic weight is 1 unified atomic mass unit (u).

    - Iron is approximately 56 times heavier than hydrogen.

    - Comparing atomic weights:

    - Option 1: 23 times is incorrect for iron vs. hydrogen.

    - Option 2: 1638 times is significantly excessive.

    - Option 3: 55 times is very close to the correct ratio.

    - Option 4: 238 times is much higher than the actual difference.

    Correct Answer: Option 3 - 55


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