Which of the following molecules exhibits H-bonding?

1.	CH4	2.	H2Se
3.	N2H4	4.	H2S

The correct order of the dipole moment of the following molecules is : 

Which among the following species has a triangular planar shape?

Given the following hydrocarbon:

The state of hybridisation of carbons marked 2, 3, 5 and 6 in the following hydrocarbon are, respectively :

1. sp, sp³, sp² and sp³

2. sp³, sp², sp² and sp

3. sp, sp², sp² and sp³

4. sp, sp² sp³ and sp²

Which of the following compounds has a higher hydration energy than the lattice energy?

1. BaSO₄                           

2. MgSO₄

3. CaSO₄                           

4. SrSO₄

The incorrect order of lattice energy among the following set is:

1. ${\mathrm{AlF}}_3>{\mathrm{MgF}}_2$         

2. ${\mathrm{Li}}_3\mathrm{N}>{\mathrm{Li}}_2\mathrm{O}$

3. $\mathrm{NaCl}>\mathrm{LiF}$           

4. $\mathrm{TiC}>\mathrm{ScN}$

Which of the following statements correctly describes the hydrolysis of BCl₃ and NCl₃?

How many possible resonance forms exist for the nitrate ion, \(\text{NO}_3^-\)​?

The shape of $\mathrm{Xe}{{\mathrm{F}}_3}^{+}$ is:

Which of the following pair of elements can form an ionic compound?