Formative Test : C5 Chemical Bonds

What is the bond that is found between ammonia molecules?

• Covalent bond

• ionic bond

• hydrogen bond

• metal bond

Why do atoms get involved in the formation of chemical bond?

• To get a neutral charge

• To achieve a stable electron arrangement

• To increase density

The electron arrangement of atom M is 2.8.1 whereas the electron arrangement of atom N is 2.6. Atom M forms a compound with atom N. Choose the correct statement regarding this reaction.

• Atom N donates six electrons

• A covalent compound is formed

• Atom M donates one electron

• The chemical formula of the compound formed is MN

In the formation of a dative bond,

• the shared electron pair originates from either one atom only.

• electrons are transferred from one atom to another.

• the shared electron originates from both atoms that are involved.

• electrons form a sea of electrons.

Which compound is an ionic compound?

• Carbon dioxide

• Potassium oxide

• Ammonium ion

• Hydrogen chloride

Which of the following is not type of covalent bond?

• Hydrogen bond

• Ionic bond

• Dative bond

What is the mode of formation of ionic bond?

• Sharing of electrons between non-metal atoms.

• Sharing of electrons between metal atoms.

• Transferring of electrons between metal atoms with non-metal atoms.

• Transferring of electrons between non-metals.

Why noble gases do not form compounds?

• They are not reactive.

• They have achieved stable electron arrangements.

• They do not have enough electrons to react and form compounds.

• They only receive electrons forming anions, thus cannot react to form compounds.

Which of the following is not true about covalent bond?

• Involves sharing of electrons.

• The bond is formed between non – metal atoms.

• The covalent bond is formed in molecules.

• Anions and cations will be formed before the formation of covalent compound.

What is hydrogen bond?

• Attraction force between anion and cation.

• Attraction force between hydrogen atom that has bonded with an atom of high electronegativity.

• Covalent bond where the electron pair that is shared comes from one atom only.