The wavelength of spectral line obtained in the spectrum of Li$^{2+}$ ion, when the transition takes place between two levels whose sum is 4 and difference is 2, is
Spherical node shown in figure-1 is best represented by which point in figure-2.
Identify the INCORRECT statements from the following:
A. Notation \( {}^{24}_{12}\mathrm{Mg} \) represents 24 protons and 12 neutrons.B. Wavelength of a radiation of frequency \( 4.5 \times 10^{15}\ \text{s}^{-1} \) is \( 6.7 \times 10^{-8}\ \text{m} \).C. One radiation has wavelength \( \lambda_1 \) (900 nm) and energy \( E_1 \). Other radiation has wavelength \( \lambda_2 \) (300 nm) and energy \( E_2 \). \( E_1 : E_2 = 3 : 1 \).D. Number of photons of light of wavelength 2000 pm that provides 1 J of energy is \( 1.006 \times 10^{16} \).
Choose the correct answer from the options given below:
The figures below show: Which of the following points in Figure 2 most accurately represents the nodal surface shown in Figure 1?
But-2-yne and hydrogen (one mole each) are separately treated with (i) Pd/C and (ii) Na/liq.NH₃ to give the products X and Y respectively.Identify the incorrect statements.A. X and Y are stereoisomers.B. Dipole moment of X is zero.C. Boiling point of X is higher than Y.D. X and Y react with O₃/Zn + H₂O to give different products.Choose the correct answer from the options given below :
Which of the following is/are correct with respect to the energy of atomic orbitals of a hydrogen atom? (A) \( 1s<2s<2p<3d<4s \) (B) \( 1s<2s = 2p<3s = 3p \) (C) \( 1s<2s<2p<3s<3p \) (D) \( 1s<2s<4s<3d \) Choose the correct answer from the options given below:
The energy of an electron in first Bohr orbit of H-atom is $-13.6$ eV. The magnitude of energy value of electron in the first excited state of Be$^{3+}$ is _____ eV (nearest integer value)
Which of the following points in Figure 2 most accurately represents the nodal surface shown in Figure 1?