MCQ
Which has the maximum number of molecules among the following ?
- A$44\, g\, CO_2$
- B$48\, g\, O_3$
- ✓$8\, g\, H_2$
- D$64\, g\, SO_2$
✓
Answer
Correct option: C.
$8\, g\, H_2$
c
No. of molecules
No. of molecules
Moles of $C{O_2} = \frac{{44}}{{44}} = 1$ $N_A$
Moles of ${O_2} = \frac{{48}}{{48}} = 1$ $N_A$
Moles of ${H_2} = \frac{8}{2} = 4$ $N_A$
Moles of $S{O_2} = \frac{{64}}{{64}} = 1$ $N_A$
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
The following element forms a molecule with eight its own weight atoms
The orbital having two radial as well as two angular nodes is
Which of the following reactions is the metal displacement reaction? Choose the right option.
Which will undergo reaction with ammoniacal $AgN{O_3}$
→The correct stability order of the following resonance structures is
Arrange the following in order of increasing dipole moment : $H_2O, H_2S, BF_3.$
→The electronic configuration of four elements are
→$(I)\,[Kr]\,5s^1$ $(II)\, [Rn]\,5f^{14}\,6d^1\,7s^2$
$(III)\,[Ar]\,3d^{10}\,4s^2\,4p^5$ $(IV)\,[Ar]\,3d^6\,4s^2$
Consider the following Statements
$(i)\, I$ shows variable oxidation State
$(ii)\, II$ is a $d-block$ element
$(iii)$ The compound formed between $I$ and $III$ is covalent
$(iv)\,IV$ shows single oxidation state
Which Statement is True $(T)$ or False $(F)$?
The solubility of $PbC{l_2}$ is
→In the following reaction $C{H_3} - C{H_2} - C{H_2} - C{H_3} \xrightarrow[475\, K]{H_2SO_4}$
→$X_{g} \to X^+_{(g)} +e^-,$ $\Delta\, H = +720 \, kJ \, mol^{-1}$
→Calculate the amount of energy required to convert $110\, mg$ of $'X'$ atom in gaseous state into $X^+$ ion .................... $\mathrm{kJ}$ (Atomic wt. for $X = 7\, g/mol$)