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1. Some basic concept of chemistry — Chemistry STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceChemistry1. Some basic concept of chemistry1 Mark
MCQ
Avogadro number is
  • A
    Number of atoms in one gram of element
  • B
    Number of millilitres which one mole of a gaseous substances occupies at $NTP$
  • ✓
    Number of molecules present in one gram molecular mass of a substance
  • D
    All of these
✓

Answer

Correct option: C.
Number of molecules present in one gram molecular mass of a substance
c
The Avogadro constant is defined as the number of constituent particles per mole of a given substance.

It is equal to $6.022 \times 10^{23}$.

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