Find the molecule in which not all the bonds are equal.

1.	ClF3	2.	BF3
3.	AlF3	4.	NF3

The electronegativity difference between N and F is greater than that between N and H yet the dipole moment of NH₃ (1.5 D) is larger than that of NF₃ (0.2 D). This is because:

The correct order of the mobility of the alkali metal ions in aqueous solution is:

1. $L{i}^{+}>N{a}^{+}>K^{+}>R{b}^{+}$

2. $N{a}^{+}>K^{+}>R{b}^{+}>L{i}^{+}$

3. $K^{+}>R{b}^{+}>N{a}^{+}>L{i}^{+}$

4. $R{b}^{+}>K^{+}>N{a}^{+}>L{i}^{+}$

The correct order regarding the electronegativity of hybrid orbitals of carbon is:

1. $sp>s{p}^2<s{p}^3$

2. $sp>s{p}^2>s{p}^3$

3. $sp<s{p}^2>s{p}^3$

4. $sp<s{p}^2<s{p}^3$

Which of the following species has a linear shape?

1. $N{O}_2^{-}$

2. $S{O}_2$

3. $N{O}_2^{+}$

4. $O_3$

Which of the following is the most basic oxide?

1. $A{l}_2{O}_3$

2. $S{b}_2{O}_3$

3. $B{i}_2{O}_3$

4. $Se{O}_2$

The orientation of an atomic orbital is governed by:

1. azimuthal quantum number

2. spin quantum number

3. magnetic quantum number

4. principal quantum number

Which of the following is not a correct statement?

The number of unpaired electrons in a paramagnetic diatomic molecule of an element with atomic number 16 is:

1. 2

2. 3

3. 4

4. 1

Which one of the following orders is not in accordance with the property stated against?

1. \(\mathrm{F}_2>\mathrm{Cl}_2>\mathrm{Br}_2>\mathrm{I}_2: \text { Oxidising power }\)$$

2. \(\mathrm{Hl}>\mathrm{HBr}>\mathrm{HCl}>\mathrm{HF}: \text { Acidic property in water }\)

3. ${}_{}$\(\mathrm{F_2>C l_2>B r_2>I_2: \text { Electronegativity }}\)

4. ${}_{}$\(\mathrm{F_2>C l_2>B r_2>I_2: \text { Bond dissociation energy }}\)