Match the elements with the number of electrons present in their L-shell.
$$\begin{array}{cc}\text{Elements}& \text{Electrons in L-shell}\\ \text{(a) Hydrogen}& \text{(i) 8}\\ \text{(b) Nitrogen}& \text{(ii) 0}\\ \text{(c) Lithium}& \text{(iii) 1}\\ \text{(d) Neon}& \text{(iv) 5}\end{array}$$

Match list-I with list-II and select the correct answer using the codes given below -

List-I List-II

Ion Radius (in pm)

(I) $L{i}^{+}$ (a) 216

(II) $N{a}^{+}$ (b) 195

(III) $B{r}^{-}$ (c) 60

(IV) $I^{-}$ (d) 95

Match list-I with list-II and select the correct answer using the codes given below -

List-I List-II

Ion Radius (in pm)

(I) Li+ (a) 216

(II) Na+ (b) 195

(III) Br- (c) 60

(IV) I- (d) 95

Codes: I II III IV

Arrange the following in the increasing order of their basicity.

CH₃NH₂(I) ;(CH₃)₂NH(II) ;C₆H₅NH₂(III) ;(CH₃)₃N(IV)