Among the following, the metal that can be used as an electrode in a photoelectric cell is- 

1.  Li   

2.  Na

3.  Rb 

4.  Cs

The products obtained on heating LiNO₃ will be:

1. ${\mathrm{Li}}_2\mathrm{O}+{\mathrm{NO}}_2+{\mathrm{O}}_2$

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

3. ${\mathrm{Li}}_2\mathrm{O}+\mathrm{NO}+{\mathrm{O}}_2$

4. ${\mathrm{LiNO}}_2+{\mathrm{O}}_2$

The structures of beryllium chloride in solid-state, and vapor state are :

1. Dimer, and Linear, respectively.

2. Chain in both.

3. Chain, and dimer, respectively.

4. Linear in both.

Among the following alkaline earth metal halides, the one which is covalent and soluble in organic solvents is:

1. Magnesium chloride

2. Beryllium chloride

3. Calcium chloride

4. Strontium chloride

The correct order of hydration enthalpies of alkali metal ions is -

1. $L{i}^{+} > N{a}^{+} > K^{+} > R{b}^{+} > C{s}^{+}$

2. $N{a}^{+} > L{i}^{+} > K^{+} > R{b}^{+} > C{s}^{+}$

3. $L{i}^{+} > N{a}^{+} > K^{+} > C{s}^{+} > R{b}^{+}$

4. $N{a}^{+} > L{i}^{+} > K^{+} > C{s}^{+} > R{b}^{+}$

Sodium hydroxide can be prepared by:

1. Down's Process.

2. Castner–Kellner process.

3. Solvay's Process.

4. None of the above.

Match the following:

The correct statement(s) among the following options is/are:

The correct statement(s) among the following options is/are:

Quick lime is heated with silica to give:

1. CaSiO₃

2. CaSiO₄

3. CaSiO

4. Ca(SiO)₃