WorksheetsChemical Bond
Total questions: 35
Worksheet time: 26mins
What is the basis of hydrogen bond?
Attraction forces between hydrogen atom bonded with another hydrogen atom
Attraction forces between hydrogen atom bonded with a high electronegativity atom (F, O, N)
Attraction forces between hydrogen atom bonded with a high electronegativity atom (F, O, N) with atom (F, O, N) of another molecule
Attraction forces between hydrogen atom with another hydrogen atom of another molecule
Only polar molecules with H-F, H-N, or H-O bonds feel this kind of Intermolecular forces
Hydrogen Bonding
Dipole-dipole forces
London dispersion forces
Can ammonia, NH3 form hydrogen bonds?
Yes
No
Can chlorine, Cl2 form hydrogen bonds?
Yes
No
Which type of intermolecular force is the strongest?
Hydrogen bonding
Dipole-dipole forces
London dispersion forces
What is the strongest kind of intermolecular forces that occurs between molecules of NH3?
Hydrogen bonding
Dipole-Dipole forces
London dispersion forces
The boiling points of water and ammonia are 373 K and 240 K respectively. The boiling point of water is higher than that of ammonia because
oxygen is less electronegative than nitrogen
the O-H bond in H2O is stronger than the N-H bond in NH3
the hydrogen bonds between water molecules are stronger than the hydrogen bonds between ammonia molecules
a water molecule has a larger size than an ammonia molecule
What is the other name for dative bond?
Cooperation bond
Coordinate bond
How can dative bond form in hydroxonium ion H3O+?
The pair of electrons not involved in covalent bond in water molecule, H2O will be shared with hydrogen ion H+
Water molecule, H2O and hydrogen ion, H+ will each share one electron
Water molecule, H2O and hydrogen ion, H+ will each share two electrons
What is the basis of a metallic bond?
the attraction of neutral metal atoms.
the attraction between protons and neutrons.
the attraction between positive metal ions and interlocking electrons.
the attraction between positive metal ions and free moving electrons.
Why do metals conduct electricity?
They are shiny
The electrons are delocalised and able to move
The electrons are held tightly within the lattice
The electrons are shared between two metal ions
The following properties are all characteristics of ionic compounds EXCEPT
high melting and boiling points
soft
crystal lattice structure
conduct electricity when dissolved in water
What set of elements is most likely to form a covalent compound?
Na and O
Na and K
O and C
Ions arranged in a pattern creating a regular cubic shape is called a ___________ __________.
crystal lattice
element cube
opposite ion
square compound
Why does sodium chloride not conduct electricity in its solid form?
Ions in its structure are in fixed positions.
It contains no free electrons.
It has a giant covalent molecular structure.
Ions in its structure only have single negative and single positive charges.
