MCQ
Which of the following has the smallest number of molecules
  • A
    $22.4 \times 10^3\, mL$ of $CO_2\, gas$ at $STP$
  • B
    $22\, g$ of $CO_2 \,gas$
  • C
    $11.2\, L$ of $CO_2 \,gas$ at $STP$
  • $0.1\, mole$ of $CO_2 \,gas$

Answer

Correct option: D.
$0.1\, mole$ of $CO_2 \,gas$
d
At condition $\mathrm{A}=1$ mole

At condition $\mathrm{B}=0.5$ mole

At condition $\mathrm{C}=0.5$ mole

At condition $\mathrm{D}=0.1$ mole

i.e. at condition $D$ we have smallest number of mole so we also have smallest number of molecule in condition $D$.

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