Which of the following species have the same shape?

(a)	CO2	(b)	CCl4
(c)	O3	(d)	NO2–

Choose the correct option

1. (a), (b)

2. (b), (c)

3. (c), (d)

4. (b), (d)

Among the following, the correct statements about ${\mathrm{CO}}_3^{2- }$

Choose the correct option :

Diamagnetic species are those which contain no unpaired electrons. Among the following, diamagnetic species are

Choose the correct option:

(a) ${\mathrm{N}}_2$

(b) ${\mathrm{N}}_2^{-}$

(c) ${\mathrm{F}}_2^{+}$

(d) ${\mathrm{O}}_2^{-}$

Choose the correct option:

1. (a), (d)

2. (b), (c)

3. (c), (d)

4. (b), (d)

The incorrect statements among the following are-

CO is isoelectronic with

(a) ${\mathrm{NO}}^{+}$

(b) ${\mathrm{N}}_2$

(c) ${\mathrm{SnCl}}_2$

(d) ${\mathrm{NO}}_2^{-}$

Choose the correct option

1. (a), (b)

2. (b), (c)

3. (c), (d)

4. (b), (d)

Which of the following attain the linear structure?

(a) ${\mathrm{BeCl}}_2$

(b) ${\mathrm{NCO}}^{+}$

(c) ${\mathrm{NO}}_2$

(d) ${\mathrm{CS}}_2$

Choose the correct option

Which of the following have identical bond order?

(a) ${\mathrm{CN}}^{-}$

(b) ${\mathrm{NO}}^{+}$

(c) ${\mathrm{O}}_2^{-}$

(d) ${\mathrm{O}}_2^{2-}$

Choose the correct option

1. (a), (b)

2. (b), (c)

3. (c), (d)

4. (b), (d)

An isoelectronic pair among the following is:

(a) Na⁺, Mg²⁺ 

(b) Al³⁺, O^– 

(c) Na⁺, O^2– 

(d) N^3-, Cl^– 

Which of the following pairs of ions are isoelectronic and isostructural?
\(a. \mathrm{CO}_{3}^{2-}, \mathrm{NO}_{3}^{-} \\ b. \mathrm{ClO}_{3}^{-}, \mathrm{CO}_{3}^{2-} \\ c. \mathrm{SO}_{3}^{2-}, \mathrm{NO}_{3}^{-} \\ d. \mathrm{ClO}_{3}^{-}, \mathrm{SO}_{3}^{2-} \\\)