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WorksheetsFormative Test : C5 Chemical Bonds
Total questions: 15
Worksheet time: 10mins
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.
Which of the following compounds and their properties is true?
Ionic compounds have low melting point and boiling point.
Ionic compounds normally soluble in organic solvent.
Covalent compounds cannot conduct electricity in any state.
Why sodium chloride solution is able to conduct electricity, but glucose solution cannot conduct electricity?
Sodium chloride solution is an ionic compound.
Sodium chloride solution has free-moving ions.
Glucose solution has free-moving molecules.
Which of the following chemical compounds and their uses is correctly matched?
I Lithium iodide (ionic compound) – used in batteries.
II Paracetamol (covalent compound) – used to treat fever.
III Glycerol (ionic compound) – used to add moisture to skin.
IV Ammonium nitrate (covalent compound) – used as fertilizers.
I and II
I and III
III and IV
Which of the statement is the best explanation why copper is used in the manufacturing electrical wire?
Copper is reactive metal.
Copper is a good electrical conductor.
Copper has delocalised electrons that help conduct electricity.
Copper has free-moving ions that help conduct electricity.
Which of the following compounds has a dative bond?
Ammonia, NH3
Ammonium ion, NH4+
Urea
Nitrogen
