The atomic mass of elements is defined with respect to $\frac{1}{12}$ th of mass of single atom of $C - 12$ [present scale]. If the reference is changed to $\frac{1}{24}$ th of mass of single atom of $C - 12$ [new scale], then select the correct statement(s).
(Given : Atomic mass of $Fe$ on present scale is 56 Mass of $\frac{1}{12}$ th of mass of a single atom of $C - 12 = 1$
The new mass of $\frac{1}{24}$ th of mass of a single atom of $C - 12 = 1$ Uma (universal mass of the atom)

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The atomic mass of elements will change.

The mass of an atom of $Fe$ will is 112 amu on a new scale.

The atomic mass of $Fe$ on the new scale will be 112.

The mass of an atom (in gm) of an element remains the same on both scales.

answer is A, B, D.

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Detailed Solution

Here, the atomic mass of elements is changed in this process.

The mass of atom (in gm) of an element remains the same on both scales.

The atomic mass of $Fe$ on the new scale will be 112.

Here, only third option is incorrect.

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