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Some Basic Concepts of Chemistry — Chemistry STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceChemistrySome Basic Concepts of Chemistry1 Mark
MCQ
The value of 1 amu is equal to:
  • A
    1.66 × 10−8g
  • B
    1.66 × 10−4g
  • C
    1.66 × 10−16g
  • D
    1.66 × 10−24g
✓

Answer

  1. 1.66 × 10−24g

Explanation:

One an amu is $\frac{1}{2}$ of the mass of one carbon-12 atom.

It is equal to $\frac{1}{\text{N}_\text{A}}$

$\frac{1}{6.022\times10^{23}}=1.66\times10^{-24}\text{g}$

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