QUESTION BANK ON SALT ANALYSIS
There are 102 questions in this question bank.
Select the correct alternative : (Only one is correct)
Q.1 In theprecipitationofthe irongroup inqualitative analysis, ammoniumchloride is added before adding
ammoniumhydroxideto
(A) decrease concentration ofOH— ions. (B) prevent interference byphosphate ions.
(C) increase concentration ofCl— ions. (D) increase concentrationof 
4
NH ions.
Q.2 A salt gives violet vapours when treated with conc. H2SO4, it contains
(A) Cl– (B) I— (C) Br– (D) 
3
NO
Q.3 The acidic solutionofa salt produced a deep blue colour withstarchiodide solution. The salt maybe
(A) chloride (B)nitrite (C) acetate (D) bromide
Q.4 When a mixture of solid NaCl, solid K2Cr2O7 is heated with conc. H2SO4, orange red vapours are
obtained. These are ofthe compound
(A) chromous chloride (B) chromylchloride
(C) chromic chloride (D) chromic sulphate
Q.5 Which ofthe following pairs ofions would be expected to form precipitate when dilute solution are
mixed?
(A) Na+, 
2
4
SO (B) 
4
NH , 
2
3
CO (C) Na+, 
2
2
S (D) Fe3+, 
3
4
PO
Q.6 Nessler's reagent is
(A) K2HgI4 (B) K2HgI4 + KOH (C) K2HgI2 + KOH (D) K2HgI4 + KI
Q.7 When bismuthchloride is poured into a large volume ofwater the white precipitate produced is
(A) Bi(OH)3 (B) Bi2O3 (C) BiOCl (D) Bi2OCl3
Q.8 Ferric ionforms a prussian bluecoloured ppt. of
(A) K4[Fe(CN)6] (B) Fe4[Fe(CN)6]3 (C) KMnO4 (D) Fe(OH)3
Q.9 A mixture, onheating with conc. H2SO4 and MnO2, libratesbrown vapour of
(A) Br2 (B) NO2 (C) HBr (D) I2
Q.10 Which one of the following can be used in place of NH4Cl for the identification of the third group
radicals?
(A) NH4NO3 (B) (NH4)2SO4 (C) (NH4)2S (D) (NH4)2CO3
Q.11 At the occasion ofmarriage, the fire works are used, which ofthe following gives green flame?
(A) Ba (B) K (C) Be (D) Na
Q.12 Nitrate isconfirmed byring test. The browncolour ofthe ring is due to formation of
(A)ferrousnitrite (B) nitroso ferrous sulphate
(C) ferrous nitrate (D) FeSO4NO2

Q.25 Which is soluble in NH4OH?
(A) PbCl2 (B)AgCl (C) PbSO4 (D) CaCO3
Q.26 Which ofthe following combines withFe(II) ions to forma browncomplex
(A) N2O (B) NO (C) N2O3 (D) N2O4
Q.27 Nessler's reagent is used to detect
(A) 
2
4
CrO (B) 
3
4
PO (C) 
4
MnO (D) 
4
NH
Q.28 Prussianblue is formed when
(A) ferrous sulphate reacts withFeCl3. (B) ferric sulphate reacts with K4[Fe(CN)6].
(C)Ammoniumsulphatereacts withFeCl3 (D) ferrous ammoniumsulphate reacts with FeCl3
Q.29 What product is formed bymixing the solutionofK4[Fe(CN)6] withthe solutionofFeCl3?
(A) Ferro-ferricyanide (B) Ferri-ferrocyanide (C) Ferri-ferricyanide (D) None ofthese
Q.30 Whichofthefollowing willnot give positivechromylchloride test?
(A) Copper chloride, CuCl2 (B) Mercuric chloride, HgCl2
(C) Zinc chloride, ZnCl2 (D)Anilliniumchloride, C6H5NH3Cl
Q.31 Ablue colourationis not obtained when
(A) ammoniumhydroxide dissolves in copper sulphate.
(B) copper sulphate solution reacts with K4[Fe(CN)6].
(C) ferric chloridereacts with sodiumferrocyanide.
(D) anhydrous white CuSO4 is dissolved in water.
Q.32 AgCldissolves inammonia solutiongiving
(A)Ag+, 
4
NH and Cl— (B)Ag(NH3)+ and Cl—
(C)Ag2(NH3)2– and Cl— (D)Ag 
2
3
NH and Cl—
Q.33 Awhite crystalline substance dissolves in water. On passing H2S gas in this solution, a black ppt is
obtained. The black ppt dissolves completelyin hot HNO3. Onadding a few drops ofconc. H2SO4, a
white ppt is obtained. This ppt is that of
(A) BaSO4 (B) SrSO4 (C) PbSO4 (D) CdSO4
Q.34 When excess ofSnCl2 is added to a solutionofHgCl2, a white ppt turning greyis obtained. The grey
colour is dueto the formationof
(A) Hg2Cl2 (B) SnCl4 (C) Sn (D)Hg
Q.35 Ofthe following sulphides which one isinsoluble indil. acids but soluble inalkalies.
(A) PbS (B) CdS (C) FeS (D)As2S3
Q.36 When chlorine water is added to anaqueous solution ofpotassiumhalide in presence ofchloroform, a
violet colouris obtained. Onaddingmoreofchlorinewater, the violet colourdisappears, and acolourless
solutionis obtained. This test confirms thepresence ofthe followingin aqueous solution
(A) Iodide (B) Bromide (C) Chloride (D) Iodide and bromide

Q.50 Dimethylglyoxime ina suitable solvent was refluxed for 10 minuteswithpure pieces ofnickelsheet, it
willresult in
(A) Red ppt (B) Blue ppt. (C)Yellow ppt. (D) No ppt.
Q.51 Amixtureofchloridesofcopper,cadmium,chromium, ironandaluminiumwasdissolvedinwateracidified
with HCland hydrogen sulphide gas was passed for sufficient time. It was filtered, boiled and a few
drops ofnitricacid were addedwhile boiling. To thissolutionammoniumchloride andsodiumhydroxide
were added inexcess and filtered. The filtrate shallgivetest for
(A) sodiumand iron (B) sodium,chromiumandaluminium
(C)aluminiumandiron (D)sodium, iron, cadmiumandaluminium
Q.52 A metalis brunt inairand the ashonmoistening smells ofammonia. The metalis
(A) Na (B) Fe (C) Mg (D)Al
Q.53 Solution ofchemicalcompound X reacts withAgNO3 solutionto formawhiteppt.Ywhichdissolves in
NH4OH to give a complex Z. When Z istreated withdil. HNO3,Yreappears. Thechemicalcompound
X can be
(A) NaCl (B) CH3Cl (C) NaBr (D) NaI
Q.54 A white ppt obtained in a analysis ofa mixture becomes black on treatment with NH4OH. It maybe
(A) PbCl2 (B)AgCl (C) HgCl2 (D) Hg2Cl2
Q.55 A salt ontreatment with dil. HClgives a pungent smelling gas and a yellow precipitate. The salt gives
greenflamewhen tested. The solutiongives a yellow precipitatewithpotassiumchromate. Thesalt is:
(A) NiSO4 (B) BaS2O3 (C) PbS2O3 (D) CuSO4
Q.56 Which compound does not dissolve inhot dilute HNO3?
(A) HgS (B) PbS (C) CuS (D) CdS
Q.57 Anaqueous solutionofFeSO4,Al2(SO4)3 and chromealumis heated withexcess ofNa2O2 and filtered.
The materials obtained are:
(A) acolourless filtrate and a greenresidue. (B) a yellow filtrate and agreenresidue.
(C) a yellow filtrate and a brown residue. (D) a green filtrate and a brown residue.
Q.58 Whichofthe following compound onreaction withNaOH and Na2O2 givesyellow colour?
(A) Cr(OH)3 (B) Zn(OH)2 (C)Al(OH)3 (D) None ofthese
Q.59 CrO3 dissolves inaqueous NaOH to give:
(A) 
2
7
2O
Cr (B) 
2
4
CrO (C) Cr(OH)3 (D) Cr(OH)2
Q.60 B(OH)3 + NaOH l NaBO2 + Na[B(OH)4] + H2O
How can this reaction is made to proceed in forward direction?
(A) addition ofcis 1,2 diol (B) addititonofborax
(C) addition oftrans 1,2 diol (D) additionof Na2HPO4
Q.61 Asolutionwhendiluted withH2O andboiled, it gives awhite precipitate. Onadditionofexcess NH4Cl/
NH4OH the volumeofprecipitate decreases leaving behind a white gelatinousprecipitate. Identifythe
precipitate whichdissolves in NH4OH/NH4Cl
(A) Zn(OH)2 (B)Al(OH)3 (C) Mg(OH)2 (D) Ca(OH)2

Q.74 Three separate samples ofa solutionofa single salt gave these results. One formeda white precipitate
withexcessofammonia solution, oneformed a white precipitatewithdilNaClsolutionand one formed
a black precipitate with H2S. The salt could be:
(A)AgNO3 (B) Pb(NO3)2 (C) Hg(NO3)2 (D) MnSO4
Q.75 Whichone ofthe following ionic specieswillimpart colour to anaqueous solution?
(A)Ti4+ (B)Cu+ (C) Zn2+ (D)Cr3+
Q.76 Whena substanceAreacts withwater it produces a combustible gas B anda solutionofsubstanceC in
water. When another substance D reacts with this solution of C, it also produces the same gas B on
warming but Dcanproduce gas Bonreactionwithdilutesulphuric acid at roomtemperature.Aimparts
a deep goldenyellow colour a smokeless flame to Bunsen burner.A, B, C and D respectivelyare:
(A) Na, H2, NaOH, Zn (B) K, H2, KOH, Al
(C) Ca, H2, Ca(OH)2, Sn (D) CaC2, C2H2, Ca(OH)2, Fe
Q.77 Which is not dissolved bydilHCl?
(A) ZnS (B) MnS (C) BaSO3 (D) BaSO4
Q.78 The brown ring test for 
2
NO and 
3
NO is due to the formationofcomplexion withformula:
(A) [Fe(H2O)6]2+ (B) [Fe(NO)(CN)5]2–
(C) [Fe(H2O)5(NO)]2+ (D) [Fe(H2O)(NO)5]2+
Q.79 In Nessler’s reagents, the ion present is:
(A) HgI2– (B) 
2
4
HgI (C) Hg+ (D) Hg2+
Q.80 The cations present inslightlyacidic solutionare Fe3+, Zn2+ andCu2+. Thereagent whichwhenadded in
excess to this solution would identifyand separte Fe3+ inone step is:
(A) 2 M HCl (B) 6 M NH3 (C) 6 M NaOH (D) H2S gas
Q.81 Whichofthe following leaves no residue onheating?
(A) Pb(NO3)2 (B) NH4NO3 (C) Cu(NO3)2 (D) NaNO3
Q.82 When I2 is passed through KCl, KF, KBr :
(A) Cl2 and Br2 are evolved (B) Cl2 is evolved
(C) Cl2, F2 and Br2 are evolved (D) None ofthese
Q.83 In the separation ofCu2+ and Cd2+ in 2nd group qualitative analysis ofcations tetrammine copper (II)
sulphate and tetrammine cadmium (II) sulphate react with KCN to form the corresponding cyano
complexes. Whichone of the following pairs ofthe complexes and their relative stabilityenables the
separation ofCu2+ and Cd2+?
(A) K3[Cu(CN)4] more stable and K2[Cd(CN)4] less stable.
(B) K2[Cu(CN)4] less stable and K2[Cd(CN)4] more stable.
(C) K2[Cu(CN)4] more stable and K2[Cd(CN)4] less stable.
(D) K3[Cu(CN)4] less stable and K2[Cd(CN)4] more stable.
Q.84 Whichone hasthe minimumsolubilityproduct?
(A)AgCl (B)AlCl3 (C) BaCl2 (D) NH4Cl

Q.98 When H2S gas is passed through the HCl containing aqueous solution of CuCl2, HgCl2, BiCl3 and
CoCl2, it does not precipitate out:
(A) CuS (B)HgS (C) Bi2S3 (D) CoS
Q.99 Mark thecorrect statement:
(A) I group basic radicals precipitate as chlorides
(B) IV group basic radicals precipitates as sulphides.
(C) V group basic radicals precipitates as carbonates.
(D)Allthe above statement are correct.
Q.100 Potassiumchromate solution is added to an aqueous solutionofa metalchloride. Theprecipitate thus
obtained are insoluble in acetic acid. These are subjected to flame test, the colour ofthe flame is:
(A) Lilac (B)Apple green (C) Crimson red (D) Goldenyellow
Q.101 The species present in solution when CO2 is dissolved in water are
(A) 
 2
3
3
3
2
2 CO
,
HCO
,
CO
H
,
CO (B) 
2
3
3
2 CO
,
CO
H
(C) 

3
2
3 HCO
,
CO (D) 3
2
2 CO
H
,
CO
Q.102 MgSO4 onreactionwithNH4OHandNa2HPO4 formsawhite crystalline precipitate. Whatisitsformula?
(A) Mg(NH4)PO4 (B) Mg3(PO4)2 (C) MgCl2·MgSO4 (D) MgSO4