If we consider that `1/6`, in place of `1/12` mass of carbon atom is taken to be the relative atomic mass unit, the mass of one mole of a substance will:
a.be a function of the molecular mass of the substance
b.remain unchanged
c.increase two fold
d.decrease twice.

Options

A. decrease twice
B. increase two folds
C. remain unchanged
D. be a function of the molecular mass of the substance

Answer

A

Explanation

1 atomic mass unit on the scale of 1/6 of amu on the scale of 1/12 of C–12.
Now, atomic mass of an element `= ("Mass of one atom of the element")/("1 amu (Here on the scale of "(1)/(6) " of C-12)")`
`= ("Mass of one atom of the element")/("2 amu (Here on the scale of "(1)/(12) " of C-12)")`
`:.` Numerically the mass of a substance will become half of the normal scale