Conductivity MP BP and Electronegativity (Group 2)

Q. Give reasons why alkali metals and halogens do not occur in free state in nature​?

Q. Arrange the following
(d) Chlorine, Sodium, Magnesium, (increasing reducing character)

Q. Give reasons.​
(b) Alkali metals and halogens do not occur free in nature​

Q. Which of the following correctly represents the reaction between magnesium ribbon and oxygen gas to produce magnesium oxide?

1. $Mg$ + $O$ → $MgO$
2. Mg + $O_2$ → ${MgO}_2$
3. $Mg$ + $O_2$ → $MgO$
4. $Mg$ + $O_2$ → ${Mg}_{2}O$

Q. Which of the following correctly represents the reaction between magnesium ribbon and oxygen gas to produce magnesium oxide?

1. $Mg$ + $O$ → $MgO$
2. Let’s understand why Mg + O → MgO is incorrect.
   
3. Mg + $O_2$ → ${MgO}_2$
4. $Mg$ + $O_2$ → $MgO$

Q. Which of the following metals has the highest melting point?

1. Be
2. Mg
3. Ca
4. Ba

Q. The gain of electrons is known as and the loss of electrons is known as .

1. electrolysis
2. reduction
3. oxidation
4. decomposition

Q. Which of the following correctly represents the reaction between magnesium ribbon and oxygen gas to produce magnesium oxide? (dummy)

1. dawda
2. dawdawd
3. dasdas

Q. Which of the following correctly represents the reaction between magnesium ribbon and oxygen gas to produce magnesium oxide?

1. ABC
2. $Mg$ + $O$ → $MgO$
3. EFG
4. XYZ