AQA A Level Chemistry| Real Based Questions with
Correct Answers| Upgraded for a Perfect 100% Score|
Graded A+
1 concentration = - Correct Answer ✅💯n x1000/V
2 concentration = - Correct Answer ✅💯mass of solute x
1000/V
2HX + H2SO4-> (X is a Br or I) - Correct Answer ✅💯X₂ + SO₂
+ 2H₂O
2NaOH + Cl2 -> (making bleach) - Correct Answer ✅💯NaClO
+ NaCl + H₂O
2O₃ → - Correct Answer ✅💯3O₂
6HI + SO2 -> - Correct Answer ✅💯H₂S + 3I₂ + 2H₂O
activation energy definition - Correct Answer ✅💯minimum
amount of kinetic energy that particles need for a reaction to
occur
AgBr in NH3 solution - Correct Answer ✅💯dissolves in
concentrated NH₃
AgBr precipitate colour - Correct Answer ✅💯cream
AgCl in NH3 solution - Correct Answer ✅💯dissolves in dilute
NH₃
AgCl precipitate colour - Correct Answer ✅💯white
AgI precipitate colour - Correct Answer ✅💯yellow
alcohol functional group - Correct Answer ✅💯OH
aldehyde general formula - Correct Answer ✅💯RCHO
atomic radius ...... across a Period - Correct Answer
✅💯decreases
Avogadro's constant = - Correct Answer ✅💯6.02x10²³ mol⁻¹
boiling point of halogens ..... down the group - Correct Answer
✅💯increases
bond breaking is - Correct Answer ✅💯endothermic
, bond dissociation energy - Correct Answer ✅💯the enthalpy
change when all the bonds of the same type in 1 mole of
gaseous molecules are broken
bond dissociation enthalpy definition - Correct Answer ✅💯the
enthalpy change required to break a covalent bond with all
species in the gaseous state
bond making is - Correct Answer ✅💯exothermic
bonding pair/ bonding pair angles are the ...... - Correct Answer
✅💯smallest
bromine water with an alkane - Correct Answer ✅💯solution
stays orange
bromine water with an alkene - Correct Answer ✅💯solution
turns from orange to colourless
carbocation definition - Correct Answer ✅💯organic ion
containing a positively charged carbon atom
carbonyl compound definition - Correct Answer ✅💯compound
that contains a carbon-oxygen double bond
carboxylic acid functional group - Correct Answer ✅💯COOH
carboxylic acid with sodium carbonate observation - Correct
Answer ✅💯produces a gas (fizzing) that produces a white
precipitate when bubbled through limewater
catalytic cracking conditions - Correct Answer ✅💯high
temperature (500'C), slight pressure, zeolite catalyst
catalytic cracking conditions - Correct Answer ✅💯zeolite
catalyst, slight pressure, 500°C
chain isomers definition - Correct Answer ✅💯organic
molecules with the same atoms and functional groups but
different arrangement of the carbon skeleton
Cl2 + H2O <--> - Correct Answer ✅💯2H⁺ + Cl⁻ + ClO⁻
Cl2 + H2O <--> (in sunlight) - Correct Answer ✅💯2H⁺ + 2Cl⁻
+ 1/2O₂
Correct Answers| Upgraded for a Perfect 100% Score|
Graded A+
1 concentration = - Correct Answer ✅💯n x1000/V
2 concentration = - Correct Answer ✅💯mass of solute x
1000/V
2HX + H2SO4-> (X is a Br or I) - Correct Answer ✅💯X₂ + SO₂
+ 2H₂O
2NaOH + Cl2 -> (making bleach) - Correct Answer ✅💯NaClO
+ NaCl + H₂O
2O₃ → - Correct Answer ✅💯3O₂
6HI + SO2 -> - Correct Answer ✅💯H₂S + 3I₂ + 2H₂O
activation energy definition - Correct Answer ✅💯minimum
amount of kinetic energy that particles need for a reaction to
occur
AgBr in NH3 solution - Correct Answer ✅💯dissolves in
concentrated NH₃
AgBr precipitate colour - Correct Answer ✅💯cream
AgCl in NH3 solution - Correct Answer ✅💯dissolves in dilute
NH₃
AgCl precipitate colour - Correct Answer ✅💯white
AgI precipitate colour - Correct Answer ✅💯yellow
alcohol functional group - Correct Answer ✅💯OH
aldehyde general formula - Correct Answer ✅💯RCHO
atomic radius ...... across a Period - Correct Answer
✅💯decreases
Avogadro's constant = - Correct Answer ✅💯6.02x10²³ mol⁻¹
boiling point of halogens ..... down the group - Correct Answer
✅💯increases
bond breaking is - Correct Answer ✅💯endothermic
, bond dissociation energy - Correct Answer ✅💯the enthalpy
change when all the bonds of the same type in 1 mole of
gaseous molecules are broken
bond dissociation enthalpy definition - Correct Answer ✅💯the
enthalpy change required to break a covalent bond with all
species in the gaseous state
bond making is - Correct Answer ✅💯exothermic
bonding pair/ bonding pair angles are the ...... - Correct Answer
✅💯smallest
bromine water with an alkane - Correct Answer ✅💯solution
stays orange
bromine water with an alkene - Correct Answer ✅💯solution
turns from orange to colourless
carbocation definition - Correct Answer ✅💯organic ion
containing a positively charged carbon atom
carbonyl compound definition - Correct Answer ✅💯compound
that contains a carbon-oxygen double bond
carboxylic acid functional group - Correct Answer ✅💯COOH
carboxylic acid with sodium carbonate observation - Correct
Answer ✅💯produces a gas (fizzing) that produces a white
precipitate when bubbled through limewater
catalytic cracking conditions - Correct Answer ✅💯high
temperature (500'C), slight pressure, zeolite catalyst
catalytic cracking conditions - Correct Answer ✅💯zeolite
catalyst, slight pressure, 500°C
chain isomers definition - Correct Answer ✅💯organic
molecules with the same atoms and functional groups but
different arrangement of the carbon skeleton
Cl2 + H2O <--> - Correct Answer ✅💯2H⁺ + Cl⁻ + ClO⁻
Cl2 + H2O <--> (in sunlight) - Correct Answer ✅💯2H⁺ + 2Cl⁻
+ 1/2O₂
