Identify correct statements from the following.(A) Both 1s and 2s orbitals have same number of nodal planes.(B) Chromium atom shows anomalous configuration.(C) In Hydrogen atom, energy of orbital depends on the value of principal quantum number only.(D) Bohr's theory cannot explain Zeeman effect.

(A) number of nodal planes ='l' ;      l = 0 for ‘s’ orbitals. ‘l’ value for 1s and 2s orbitals is zero(B) Cr - [Ar]  4s13d5(C) In H-atom (single electron species), energy of orbital depends only on ‘n’ value.      Energy of 1s < 2s = 2p < 3s > 3p = 3d(D) Bohr's theory cannot explain Zeeman effect and Stark effect.