BTEC APPLIED SCIENCE UNIT 1 NEWEST
EXAM 2025 WITH MULTIPLE CHOICE OF
QUESTIONS AND DETAILED SOLVED
SOLUTIONS ALREADY GRADED A+ AND 100%
GUARANTEE PASS (JUST RELEASED!!!!!)
What is the charge of an ion from group 6? - CORRECT ANSWER--2
What is the charge of an ion from group 7? - CORRECT ANSWER--1
State two factors that affect the strength of an ionic bond -
CORRECT ANSWER-Size of ion and charge on ion
When can ionic substances conduct electricity? - CORRECT ANSWER-
When molten or in aqueous solution
Define the term covalent bond - CORRECT ANSWER-A shared pair of
electrons
Why do metals have such high melting points? - CORRECT ANSWER-
Strong force of attraction between positive ions and delocalised
electrons. This requires a large amount of energy to overcome.
,Explain how the charge on metal ions affects the strength of the
metallic bond - CORRECT ANSWER-The larger the +ve charge the
greater the attraction between the nucleus and the delocalised
electrons
Explain why metals conduct electricity - CORRECT ANSWER-The
delocalised electrons 'carry' charge. Current flows because of
this.
Explain why metals are ductile and malleable - CORRECT ANSWER-
The lattice structure allows layers of metal ions to slide over
each other without disrupting bonding
Name the 3 forces between molecules - CORRECT ANSWER-Van der
Waals
Permanent dipole-dipole
Hydrogen bonds
Order the 3 forces between molecules in order of strongest to
weakest - CORRECT ANSWER-Hydrogen bonds
Permanent dipole-dipole
Van der Waals
How are Van der Waal's forces formed? - CORRECT ANSWER-
Electrons move to one side, caused temporary dipole. This
induces a temporary dipole in neighbouring molecules.
Attraction occurs between oppositely charged dipoles
,In which molecules do permanent dipole-dipole forces exist? -
CORRECT ANSWER-Polar molecules
Which elements must be present for hydrogen bonds to exist? -
CORRECT ANSWER-Hydrogen and either nitrogen, oxygen or
fluorine
What is meant by the term displacement? - CORRECT ANSWER-
When a more reactive element takes the place of a less reactive
element in a compound
State the equation for determining moles - CORRECT ANSWER-Moles
= mass ÷ relative atomic mass (molar mass)
Define the term Avogadro's Constant - CORRECT ANSWER-The
number of atoms in a mole of a given substance. Quoted as
6.02x10^23
Define the term relative atomic mass - CORRECT ANSWER-The
average mass of an atom of an element relative to 1/12th the
relative atomic mass of Carbon12
What does this number represent? 6.02x10^23 - CORRECT ANSWER-
The number of particles in a mole. Commonly called Avogadro's
Constant
What is the equation for calculating % yield? - CORRECT ANSWER-%
yield = (actual yield ÷ theoretical yield) x 100
, What groups are included in the 's' block of the periodic table? -
CORRECT ANSWER-Groups 1 and 2
What part of the periodic table is known as the 'd' block? -
CORRECT ANSWER-Transition metals
Which groups are in the 'p' block of the periodic table? - CORRECT
ANSWER-3, 4, 5, 6 and 7
What is a group on the periodic table? - CORRECT ANSWER-A vertical
column
What is a period on the periodic table? - CORRECT ANSWER-A
horizontal row
Define the term first ionisation energy - CORRECT ANSWER-The
energy required to remove the outermost electron from one
mole of gaseous atoms to produce one mole of gaseous +1 ions
Define the term atomic radius - CORRECT ANSWER-The distance
between the nucleus of an atom and the outermost electron
Define the term electronegativity - CORRECT ANSWER-A measure of
how well an atom attracts a bonding pair of electrons in a
covalent bond
Define the term malleability - CORRECT ANSWER-How easily a
material can be hammered into shape
EXAM 2025 WITH MULTIPLE CHOICE OF
QUESTIONS AND DETAILED SOLVED
SOLUTIONS ALREADY GRADED A+ AND 100%
GUARANTEE PASS (JUST RELEASED!!!!!)
What is the charge of an ion from group 6? - CORRECT ANSWER--2
What is the charge of an ion from group 7? - CORRECT ANSWER--1
State two factors that affect the strength of an ionic bond -
CORRECT ANSWER-Size of ion and charge on ion
When can ionic substances conduct electricity? - CORRECT ANSWER-
When molten or in aqueous solution
Define the term covalent bond - CORRECT ANSWER-A shared pair of
electrons
Why do metals have such high melting points? - CORRECT ANSWER-
Strong force of attraction between positive ions and delocalised
electrons. This requires a large amount of energy to overcome.
,Explain how the charge on metal ions affects the strength of the
metallic bond - CORRECT ANSWER-The larger the +ve charge the
greater the attraction between the nucleus and the delocalised
electrons
Explain why metals conduct electricity - CORRECT ANSWER-The
delocalised electrons 'carry' charge. Current flows because of
this.
Explain why metals are ductile and malleable - CORRECT ANSWER-
The lattice structure allows layers of metal ions to slide over
each other without disrupting bonding
Name the 3 forces between molecules - CORRECT ANSWER-Van der
Waals
Permanent dipole-dipole
Hydrogen bonds
Order the 3 forces between molecules in order of strongest to
weakest - CORRECT ANSWER-Hydrogen bonds
Permanent dipole-dipole
Van der Waals
How are Van der Waal's forces formed? - CORRECT ANSWER-
Electrons move to one side, caused temporary dipole. This
induces a temporary dipole in neighbouring molecules.
Attraction occurs between oppositely charged dipoles
,In which molecules do permanent dipole-dipole forces exist? -
CORRECT ANSWER-Polar molecules
Which elements must be present for hydrogen bonds to exist? -
CORRECT ANSWER-Hydrogen and either nitrogen, oxygen or
fluorine
What is meant by the term displacement? - CORRECT ANSWER-
When a more reactive element takes the place of a less reactive
element in a compound
State the equation for determining moles - CORRECT ANSWER-Moles
= mass ÷ relative atomic mass (molar mass)
Define the term Avogadro's Constant - CORRECT ANSWER-The
number of atoms in a mole of a given substance. Quoted as
6.02x10^23
Define the term relative atomic mass - CORRECT ANSWER-The
average mass of an atom of an element relative to 1/12th the
relative atomic mass of Carbon12
What does this number represent? 6.02x10^23 - CORRECT ANSWER-
The number of particles in a mole. Commonly called Avogadro's
Constant
What is the equation for calculating % yield? - CORRECT ANSWER-%
yield = (actual yield ÷ theoretical yield) x 100
, What groups are included in the 's' block of the periodic table? -
CORRECT ANSWER-Groups 1 and 2
What part of the periodic table is known as the 'd' block? -
CORRECT ANSWER-Transition metals
Which groups are in the 'p' block of the periodic table? - CORRECT
ANSWER-3, 4, 5, 6 and 7
What is a group on the periodic table? - CORRECT ANSWER-A vertical
column
What is a period on the periodic table? - CORRECT ANSWER-A
horizontal row
Define the term first ionisation energy - CORRECT ANSWER-The
energy required to remove the outermost electron from one
mole of gaseous atoms to produce one mole of gaseous +1 ions
Define the term atomic radius - CORRECT ANSWER-The distance
between the nucleus of an atom and the outermost electron
Define the term electronegativity - CORRECT ANSWER-A measure of
how well an atom attracts a bonding pair of electrons in a
covalent bond
Define the term malleability - CORRECT ANSWER-How easily a
material can be hammered into shape
