One mole of $H_{2}O$ means:
$(i)$ $18 \text{ g}$ of $H_{2}O$
$(ii)$ $6.022 \times 10^{23}$ molecules of $H_{2}O$
$(iii)$ $180 \text{ g}$ of $H_{2}O$
$(iv)$ $1.8 \text{ g}$ of $H_{2}O$

  • A
    Both $(ii)$ and $(iii)$ are correct
  • B
    Only $(i)$ is correct
  • C
    Both $(iii)$ and $(iv)$ are correct
  • D
    Both $(i)$ and $(ii)$ are correct

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Similar Questions

Define mole. Give its symbol. What is the advantage of this mole concept?

$(a)$ Calculate the mass of $0.5$ mole of oxygen atoms.
$(b)$ Calculate the number of molecules of glucose present in its $90 \ g$ (molecular mass of glucose is $180 \ u$). (Avogadro constant $= 6.022 \times 10^{23} \ mol^{-1}$)
$(c)$ Calculate the number of moles of water in $2 \ g$ of water.
(Atomic mass of $H = 1 \ u, O = 16 \ u$)

Which of the following contains the maximum number of molecules?

Which of the following has the maximum number of atoms?

Calculate the number of atoms in:
$(a)$ $16 \, g$ of oxygen $(O_2)$ molecules
$(b)$ $0.1 \, mole$ of carbon atoms.

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