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WorksheetsMETALIC BOND & PROPERTIES IONIC AND COVALENT COMPOUND
Total questions: 10
Worksheet time: 11mins
1. Which substance contains metallic bond?
Sodium chloride ,NaCl
Iron nail, Fe
Carbon dioxide, CO2
water, H2O
How metallic bond is formed?
Metal atoms donate its valence electron
Non metal atoms share its valence electron
Negatively charge sea of electron from strong electrostatic forces with positively charge metal ions
Positively charge of ions formed strong electrostatic forces with negatively charge of non metal ions.
What is the effect the presence of metallic bond on the physical properties of a substance?
[ You can choose more than 1 answer]
High melting and boiling point
Solubility in water increase
Good conductor of electricity
High density
Why ionic compound cannot conduct electricity in solid state?
The compound consist of neutral molecules only
There are strong metallic bonds between the ions
There are dative bonds between the ions
The ions cannot move freely due to the presence of strong electrostatic forces
Which statements are correct?
Ionic compound insoluble in organic compound
Ionic compound soluble in water
covalent compound insoluble in organic solvent
covalent compound soluble in water
When ionic compound is being heated, the electrostatic forces between the ions will be overcome and the ions can move freely.
What is the effect of this situation?
Ionic compound can conduct electricity in molten state
Ionic compound cannot conduct electricity
Ionic compound have high melting and boiling point
Ionic compound soluble in water
Why covalent compound cannot conduct electricity in all states?
The ions cannot move freely
No presence of free moving ions, the compound only consist of neutral molecules
There are strong electrostatic forces between the ions
There are strong covalent bond bonds between the atoms
Sodium chloride consist of strong electrostatic forces between the ions. What is the effect to its physical properties?
More soluble in water
High density
High melting and boiling point
Low melting and boiling point
Why covalent compound have low melting and boiling points?
The atoms are share electrons and formed covalent bond
The ions are held by strong electrostatic forces
The molecules are held by weak Van Der Waals forces
There are the presence of hydrogen bonds
Identify which substance is a covalent compound
NaCl
Copper
CO2
NH4+
