Chemical bonding

Potassium, K, forms a compound with fluorine, F.

Which statements about this compound are correct?

1.The compound is ionic.

2.The formula of the compound is KF.

3.The compound is soluble in water.

• 1,2 &3

• 1 & 2 only

• 1 & 3 only

• 2 & 3 only

A dative bond is formed when one atom provides both the electron need for a covalent bond.

• True

• False

To form a dative bond

• one atom with lone pairs

• one compound with electron deficiency

• Both

Bonding in oxonium ion

• Ionic

• Dative

• Metallic

• Covalent

CO2 & CS2 are covalent compound.

But CO2 exist as a gas and CS2 as liquid at room temperature

• greater dipole moment for CS2

• Dative bond

• vander waals force