WBJEE · Chemistry · Some Basic Concepts of Chemistry
Arrange the following in order of increasing mass
I. 1 mole of \(\mathrm{N}_2\)
II. \(0.5 \mathrm{~mole}^2\) of \(\mathrm{O}_3\)
III. \(3.011 \times 10^{23} \mathrm{molecules}\) of \(\mathrm{O}_2\)
IV. 0.5 gram atom of \(\mathrm{O}_2\)
- A IV \( < \) III \( < \) II \( < \) I
- B IV \( < \) I \( < \) III \( < \) II
- C III \( < \) II \( < \) IV \( < \) I
- D I \( < \) III \( < \) II \( < \) IV
Answer & Solution
Correct Answer
(A) IV \( < \) III \( < \) II \( < \) I
Step-by-step Solution
Detailed explanation
Hint : 1 mole \(\mathrm{N}_2=28 \mathrm{~g}\) \(0.5 \mathrm{~mole} \mathrm{O}_3=24 \mathrm{~g}\) \(3.011 \times 10^{23}\) molecules of \(\mathrm{O}_2=1 / 2\) mole \(\mathrm{O}_2=1\) mole \(\mathrm{O}=16 \mathrm{~g}\) \(0.5 \mathrm{~g}\) atom \(\mathrm{O}_2=1 / 2\) mole of atoms…
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from Chemistry
- For a van der Waals' gas, the term \(\left(\frac{a b}{V^{2}}\right)\) represents someWBJEE 2019 Medium
- Number of hydrogen ions present in 10 milionth part of \(1.33 \mathrm{cm}^{3}\) of pure water at \(25^{\circ} \mathrm{C}\) isWBJEE 2013 Hard
- At a certain temperature, the value of the slope of the plot of osmotic pressure \((\pi)\) against concentration \(\left(C\right.\) in \(\mathrm{mol} \mathrm{L}^{-1}\) ) of a certain polymer solution is \(291 \mathrm{R.}\) The temperature at which osmotic pressure is measured, is \((R\) is gas constant)WBJEE 2015 Medium
-
The correct relationship between molecules I and II isWBJEE 2022 Easy - Equal weights of \(\mathrm{CH}_{4}\) and \(\mathrm{H}_{2}\) are mixed in an empty container at \(25^{\circ} \mathrm{C}\). the fraction of the total pressure exerted by \(\mathrm{H}_{2}\) isWBJEE 2012 Medium
- A \(100\) mL, \(0.1=\mathrm{M}\) solution of ammonium acetate is diluted by adding \(100 \mathrm{mL}\) of water. The pH of the resulting solution will be \(\left(p K_{a}\right.\) of acetic acid is nearly equal to \(\mathrm{pK}_{b}\) of \(\mathrm{NH}_{4} \mathrm{OH}\) )WBJEE 2012 Medium
More PYQs from WBJEE
- If \(5 \cos 2 \theta+2 \cos ^2 \frac{\theta}{2}+1=0\), when \((0 < \theta < \pi)\), then the values of \(\theta\) are :WBJEE 2009 Easy
- A radioactive nucleus decays as follows :
\(X \xrightarrow{\alpha} X_1 \xrightarrow{\beta} X_2 \xrightarrow{a} X_3 \xrightarrow{\gamma} X_4\)
If the mass number and atomic number of ' \(X_4\) ' are 172 and 69 respectively, then the atomic number and mass number of ' \(X\) ' areWBJEE 2025 Medium - If \(\operatorname{adj} \mathrm{B}=\mathrm{A},|\mathrm{P}|=|\mathrm{Q}|=1\), then \(\operatorname{adj}\left(\mathrm{Q}^{-1} \mathrm{BP}^{-1}\right)=\)WBJEE 2025 Medium
- The value of the integral \(\int_{-2}^{2}(1+2 \sin x) e^{|x|} d x\) is
equal toWBJEE 2012 Easy - A ray of light is incident on a right angled isosceles prism parallel to its base as shown in the figure. Refractive index of the material of the prism is \(\sqrt{2}\). Then. which of the following statement(s) is/are true?
WBJEE 2018 Medium - Let \(A=\left(\begin{array}{cc}x+2 & 3 x \\ 3 & x+2\end{array}\right), B=\left(\begin{array}{cc}x & 0 \\ 5 & x+2\end{array}\right)\). Then
all solutions of the equation det \((A B)=0\) isWBJEE 2017 Easy