Structure of Atom

Match List - I with List - II:
List - I (Class of Drug)
(a) Antacid
(b) Artificial Sweetener
(c) Antifertility
(d) Tranquilizers

List - II (Example)
(i) Novestrol
(ii) Cimetidine
(iii) Valium
(iv) Alitame

Choose the most appropriate match.

The set that represents the pair of neutral oxides of nitrogen is:

A certain orbital has n= 4 and m? = -3. The number of radial nodes in this orbital is _______ (Round off to the nearest integer).

The difference between the radii of 3rd and 4th orbits of Li²⁺ in ΔR₁. The difference between the radii of 3rd and 4th orbits of He⁺ is ΔR₂. Ratio ΔR₁: ΔR₂ is:

The shortest wavelength of H atom in the Lyman series is λ₁. The longest wavelength in the Balmer Series of H⁺ is:

The region in the electromagnetic spectrum where the Balmer series lines appear is:

Among the statements (I-IV), the correct ones are:

(I) Be has smaller atomic radius compared to $\mathrm{M}\mathrm{g}$   .

(II) Be has higher ionization enthalpy than Al.

(III) Charge/radius ratio of $\mathrm{B}\mathrm{e}$ is greater than that of $\mathrm{A}\mathrm{l}$ .

(IV) Both Be and Al form mainly covalent compounds.

The strengths of 5.6 volume hydrogen peroxide (of density $1\mathrm{g}/\mathrm{m}\mathrm{L}$ ) in terms of mass percentage and molarity $\left(M\right)$ , respectively, are:

(Take molar mass of hydrogen peroxide as $34\mathrm{g}/\mathrm{m}\mathrm{o}\mathrm{l}$  )