Anionic Radius

Q.

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

1. I-a, II-b, III-d, IV-c

2. I-b, II-c, III-a, IV-d

3. I-c, II-d, III-b, IV-a

4. I-d, II-c, III-b, IV-a

Q.

Which one of the following compounds has the ratio of radius of cation and anion smallest

1. $NaCl$

2. $NaF$

3. $Mg{F}_2$

4. $MgC{l}_2$

Q. Arrange the following in increasing order of their sizes:

1. $P{b}^{3+}$
2. $Pb$
3. $P{b}^{2+}$
4. $P{b}^{4+}$

Q. The ions $O^{2–},F^{–},N{a}^{+},M{g}^{2+}$ and $A{l}^{3+}$ are isoelectronic. Their ionic radii show:

1. A significant increase from $O^{2–}$ to $A{l}^{3+}$
2. An increase from $O^{2–}$ to $F^{–}$ and then decrease from $N{a}^{+}$ to $A{l}^{3+}$
3. A significant decrease from $O^{2–}$ to $A{l}^{3+}$
4. A decrease from $O^{2–}$ to $F^{–}$ and then increase from $N{a}^{+}$ to$A{l}^{3+}$