Given below are two statements:
Statement I: Nitrogen forms oxides with +1 to +5 oxidation states due to the formation of $\mathrm{p} \pi-\mathrm{p} \pi$ bond with oxygen.
Statement II: Nitrogen does not form halides with +5 oxidation state due to the absence of d-orbital in it.
In the light of the above statements, choose the correct answer from the options given below:
1. Statement I: - Nitrogen can form oxides with oxidation states from +1 to +5 due to the formation of $\mathrm{p} \pi-\mathrm{p} \pi$ bonds with oxygen. - This statement is true.
2. Statement II: - Nitrogen does not form halides with a +5 oxidation state due to the absence of d-orbitals.
- This statement is true. Therefore, the correct answer is (4) Both Statement I and Statement II are true.
Given below are two statements.
In the light of the above statements, choose the correct answer from the options given below:
Let \( A = \{-3, -2, -1, 0, 1, 2, 3\} \). A relation \( R \) is defined such that \( xRy \) if \( y = \max(x, 1) \). The number of elements required to make it reflexive is \( l \), the number of elements required to make it symmetric is \( m \), and the number of elements in the relation \( R \) is \( n \). Then the value of \( l + m + n \) is equal to:
For hydrogen-like species, which of the following graphs provides the most appropriate representation of \( E \) vs \( Z \) plot for a constant \( n \)?
[E : Energy of the stationary state, Z : atomic number, n = principal quantum number]