Group 2 + 17

Solubility of Group 2 hydroxides ___ down the group.

• Increases

• Decreases

• Same

Solubility of Group 2 sulfate ___ down the group.

• Increases

• Decrease

• Same

Reactivity of Group 2 element ___ down the group.

• Increases

• Decreases

• Same

Thermal stability of Group 2 nitrate ___ down the group.

• Increases

• Decreases

• Same

Melting point of Group 2 element ___ down the group.

• Increases

• Decreases

• Same

Which one is correct description of metallic bond strength in Group 2 elements down the group?

• Increases due to increase in number of electrons

• Increases due to larger atomic radius

• Decreases due to larger atomic radius

• Decreases due to lower shielding effect

Why thermal stability of Group 2 nitrate increases down the group?

• Smaller cation with greater charge density polarises large anion less.

• Larger cations with smaller charge density polarises large anion less.

• Smaller cation with smaller charge density polarises large anion more.

• Large cation with greater charge densitiy polarises polarises large anion more.

Product(s) of the reaction between Mg with HCl are

• MgCl₂ + H₂

• MgCl + H₂

• MgCl + 2H

• MgCl + H₂

Product(s) of the reaction between CaO and water are

• Ca + O₂

• Ca(OH)₂

• Ca + H₂

• Ca(OH)₂ + H₂

Products of the thermal decomposition of Ca(NO₃)₂ are

• CaO + NO + H₂O

• CaO + NO + H₂O

• CaO + NO₂ + O₂

• CaO + NO₂ + CO₂