Multiple choice which of the following are properties of ionic compounds? i. very soluble in water ii. consist of molecules iii. low melting points iv. exist as crystalline solids i & iii i & iv ii & iii iii & iv

I and IV

Explanation: Ionic compounds are formed by transfer of electrons from an element to another element.

In the formation of ionic compounds usually metals lose electrons to form cations and nonmetals accept electrons to form anions. The cations and anions are held by strong coloumbic forces.

As ionic compounds are polar, they easily dissolve in water which is also a polar molecule.

Ionic compounds exist as crystalline solids due to a regular arrangement of atoms in the crystal lattice.

state the principle of separating two immiscible liquids by separating funnel. describe an activity with diagram to separate a mixture of water and kerosene oil. answer: immiscible layers separate out in layers depending on their densities in separating funne