EDEXCEL GCSE CHEMISTRY NEWEST EXAM WITH MULTIPLE CHOICE QUESTIONS ,FULLY SOLVED,EXPERT VERIFIED SOLUTIONS GRADED A+ READY TO PASS (ORIGINAL COPY!!!!!!)

EDEXCEL GCSE CHEMISTRY NEWEST
EXAM 2025-2026 WITH MULTIPLE
CHOICE QUESTIONS ,FULLY
SOLVED,EXPERT VERIFIED
SOLUTIONS GRADED A+ READY TO
PASS (ORIGINAL COPY!!!!!!)




Test for iron (II) ion (Fe2+) - THE CORRECT ANSWER-Green
precipitate with OH- ion


Test for iron (III) ion (Fe3+) - THE CORRECT ANSWER-Brown
precipitate with OH- ion


Test for Cl- (chlorine ion) - THE CORRECT ANSWER-Warm with
HNO3(aq) (nitric acid)
Add AgNO3 (silver nitrate)
White precipitate forms (AgCl/silver chloride)


Test for Br- (bromine ion) - THE CORRECT ANSWER-Warm with
HNO3(aq) (nitric acid)
Add AgNO3 (silver nitrate)
Cream precipitate (AgBr/silver bromide)

,Test for I- (iodine ion) - THE CORRECT ANSWER-Warm with
HNO3(aq) (nitric acid)
Add AgNO3 (silver nitrate)
Yellow precipitate (AgI/silver iodide)


Test for Li+ (lithium ion) - THE CORRECT ANSWER-Bright red flame
test


Test for Na+ (sodium ion) - THE CORRECT ANSWER-Orange-yellow
flame test


Test for K+ (potassium ion) - THE CORRECT ANSWER-Lilac flame test


Test for Ca2+ (calcium ion) - THE CORRECT ANSWER-Brick red flame
test
(NB brick red isn't red, looks more orange)


Test for Mg2+ (magnesium ion) - THE CORRECT ANSWER-No colour
change in flame test (specifically no change)


Test for SO4 2- (sulfate ion) - THE CORRECT ANSWER-Add HCl
(hydrocloric acid) and BaCl2 (barium chloride)
White precipitate forms (BaSO4)


Test for CO3 2- (carbonate ion) - THE CORRECT ANSWER-Add HCl
(hydrochloric acid)
Produces CO2 - test for CO2 (limewater goes cloudy)

, Test for PRESENCE of water - THE CORRECT ANSWER-Changes
anhydrous copper sulfate from white to blue
CuSO4 + 5H2O -> CuSO4.5H2O (equation must be learnt)


Test for PURITY of water - THE CORRECT ANSWER-Melting/freezing
point at 0°C
Boiling point at 100°C (BOTH must be used together)


Nitrates solubility - THE CORRECT ANSWER-All soluble


Chlorides, bromides, and iodides solubility - THE CORRECT ANSWER-
All soluble except silver (AgCl/AgBr/AgI) and lead
(PbCl2/PbBr2/PbI2)


Sulfates solubility - THE CORRECT ANSWER-All soluble except barium
(BaSO4) and calcium (CaSO4)


Carbonates solubility - THE CORRECT ANSWER-All insoluble except
sodium (Na2CO3), potassium (K2CO3) and ammonium
((NH4)2CO3)


Hydroxides solubility - THE CORRECT ANSWER-All insoluble except
sodium (NaOH), potassium (KOH) and ammonium (NH4OH)


Salts with these 3 cations (positive ions) are always soluble: -
THE CORRECT ANSWER-Sodium (Na+)

Potassium (K+)