The incorrect statement among the following regarding alkaline earth metals is : 

1.	Alkaline earth metals are silvery-white, lustrous, and harder than alkali metals.
2.	Only Ca, Sr, Mg, and Ba give a flame test.
3.	Alkaline earth metals have high electrical, and thermal conductivities.
4.	All alkaline earth metals react with halogen and form metal halides, with the general formula  MX2 .

The incorrect statement among the following is-

Why can alkali and alkaline earth metals not be obtained by chemical reduction methods?

1. They are a strong reducing agent

2. They are a strong oxidizing agent

3. Their compounds are nonreactive in nature.

4. None of these

The incorrect statement among the following is -

Quick lime is heated with silica to give:

1. CaSiO₃

2. CaSiO₄

3. CaSiO

4. Ca(SiO)₃

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

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

Match the following:

Sodium hydroxide can be prepared by:

1. Down's Process.

2. Castner–Kellner process.

3. Solvay's Process.

4. None of the above.

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