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One mole of carbon atom weighs 12g, the number of atoms in it is equal to, (Mass of carbon -12 is 1.9926× 10^-23g)

NEET UG 2020 — Chemistry Physical Chemistry

2020mcqmedium

One mole of carbon atom weighs 12g12g12g, the number of atoms in it is equal to, (Mass of carbon −12-12−12 is 1.9926×10−23g)1.9926\times {10}^{-23}g)1.9926×10−23g)

Official previous-year question

Held on 30 Apr 2020 · Verified 9 Jul 2026.

Options

  1. A

    1.2×10231.2\times {10}^{23}1.2×1023

  2. B

    6.022×10226.022\times {10}^{22}6.022×1022

  3. C

    12×102212\times {10}^{22}12×1022

  4. D

    6.022×10236.022\times {10}^{23}6.022×1023

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