JEE Mains · Chemistry · STD 11 - 2. structure of atom
Given below are two statements: Statement \(I:\) According to Bohr's model of hydrogen atom, the angular momentum of an electron in a given stationary state is quantised. Statement \(II:\) The concept of electron in Bohr's orbit, violates the Heisenberg uncertainty principle. In the light of the above statements, choose the most appropriate answer from the options given below:
- A Both Statement \(I\) and Statement \(II\) are correct.
- B Statement \(I\) is correct but Statement \(II\) is incorrect.
- C Statement \(I\) is incorrect but Statement \(II\) is correct
- D Both Statement \(I\) and Statement \(II\) are incorrect.
Answer & Solution
Correct Answer
(A) Both Statement \(I\) and Statement \(II\) are correct.
Step-by-step Solution
Detailed explanation
According to Bohr's model the angular momentum is quantised and equal to \(\frac{ nh }{2 \pi}\). Heisenberg uncertainty principle explains orbital concept, which is based on probability of finding electron.
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
- The half-life of \({}^{65}Zn\) is 245 days. After x days, 75% of original activity remained. The value of x in days is _________ . (Nearest integer)
(Given \(: \log 3=0.4771\) and \(\log 2=0.3010\) )JEE Mains 2026 Easy - \(\mathrm{N}_{2} \mathrm{O}_{5(9)} \rightarrow 2 \mathrm{NO}_{2(9)}+\frac{1}{2} \mathrm{O}_{2(\mathrm{~g})}\) In the above first order reaction the initial concentration of \(\mathrm{N}_{2} \mathrm{O}_{5}\) is \(2.40 \times 10^{-2}\, \mathrm{~mol} \,\mathrm{~L}^{-1}\) at \(318 \,K.\) The concentration of \(\mathrm{N}_{2} \mathrm{O}_{5}\) after \(1\, hour\) was \(1.60 \times 10^{-2}\, \mathrm{~mol} \,\mathrm{~L}^{-1}\), The rate constant of the reaction at \(318\, \mathrm{~K}\) is \(.....\,\times 10^{-3} \mathrm{~min}^{-1}\). (Nearest integer) [Given: \(\log 3=0.477, \log 5=0.699\) ]JEE Mains 2021 Medium
- Given below are two statements: Statement \(I :\) Pure Aniline and other arylamines are usually colourless. Statement \(II :\) Arylamines get coloured on storage due to atmospheric reduction. In the light of the above statements, choose the most appropriate answer from the options given below:JEE Mains 2023 Hard
- Match List\(-I\) with List\(-II\) :
Choose the most appropriate answer from the options given below:List\(-I\) (Species) List\(-II\) (Number of lone pairs of electrons on the central atom) \((a)\) \(\mathrm{XeF}_{2}\) \((i)\, 0\) \((b)\) \(\mathrm{XeO}_{2} \mathrm{~F}_{2}\) \((ii) \,1\) \((c)\) \(\mathrm{XeO}_{3} \mathrm{~F}_{2}\) \((iii) \,2\) \((d)\) \(\mathrm{XeF}_{4}\) \((iv) \,3\) JEE Mains 2021 Hard - The incorrect statement about Glucose is _______.JEE Mains 2024 Medium
- For the reaction \(SO_2(g) + \frac{1}{2} O_2(g) \rightleftharpoons SO_3(g),\) if \(K_P = K_C ( RT)^x\) where the symbols have usual meaning then the value of \(x\) is (assuming ideality) :JEE Mains 2014 Medium
More PYQs from JEE Mains
- The ' Spin only ' Magnetic moment for \(\left[\mathrm{Ni}\left(\mathrm{NH}_3\right)_6\right]^{2+}\) is _______ \(\times 10^{-1} \mathrm{BM}\). \((\) given \(=\) Atomic number of \(\mathrm{Ni}: 28)\)JEE Mains 2024 Hard
- Let the mean and the standard deviation of the probability distribution
be \(\mu\) and \(\sigma\), respectively. If \(\sigma-\mu=2\), then \(\sigma+\mu\) is equal to ...........\(X\) \(\alpha\) \(1\) \(0\) \(-3\) \(P(X)\) \(\frac{1}{3}\) \(K\) \(\frac{1}{6}\) \(\frac{1}{4}\) JEE Mains 2024 Hard - In alkaline medium, the reduction of permanganate anion involves a gain of \(........\) electrons.JEE Mains 2023 Easy
- When a coil is placed in a time dependent magnetic field the power dissipated in it is \(P\). The number of turns, area of the coil and radius of the coil wire are \(N\), \(A\) and \(r\) respectively. For a second coils number of turns, area of the coil and radius of the coil wire are \(2N\), \(2A\) and \(3r\) respectively. When the first coil is replaced with second coil the power dissipated in it is \(\sqrt{2}\,\alpha P\). The value of \(\alpha\) is _______.JEE Mains 2026 Hard
- A particle of mass \(m\) is acted upon by a force \(F\) given by the empirical law \(F = \frac{R}{{{t^2}}}\,v(t)\). If this law is to be tested experimentally by observing the motion starting from rest, the best way is to plotJEE Mains 2016 Hard
- The sum of all local minimum values of the function is
\(
f(x)=\left\{\begin{array}{lr}
1-2 x, & x \lt -1 \\
\frac{1}{3}(7+2|x|), & -1 \leq x \leq 2 \\
\frac{11}{18}(x-4)(x-5), & x\gt2
\end{array}\right.
\)JEE Mains 2025 Medium