JEE PYQ Practical Chemistry - Chapter-wise Questions with Solutions

About Practical Chemistry PYQs

Practical Chemistry has 130 previous year questions in the Quantrex Academy JEE Main & Advanced Chemistry bank. The 130 questions in this list come from JEE Main (62), 99 Percentile Qs Bank for JEE Main (30), JEE Advanced (18) and 2 other sources, spanning 2006 to 2026. Each question opens on its own page with the options, the correct answer and the worked solution where available.

JEE Practical Chemistry PYQs with Solutions

About Practical Chemistry PYQs

Questions by year (this list)

Practical Chemistry questions with solutions

Passage: Consider the following reaction sequence in which J , K , L and M are the major products. Given: Atomic mass (in amu): H : 1 , C : 12 , N : 14 , O : 16 , S : 32 , Br : 80

Among Fe^ 3+ , Pb^ 2+ , Cu^ 2+ and Mn^ 2+ , identify the one that gets precipitated out while passing H_2S in presence of NH_4OH as group reagent. The highest possible oxidation

Among Fe^ 2+ , Fe^ 3+ , Cr^ 2+ and Zn^ 2+ , the ion that shows positive borax bead test and with highest ionisation enthalpy is:

A salt with few drops of conc. HCl gives apple green colour in flame test. The group precipitate of the salt is dissolved in acetic acid and treated with K_2CrO_4 to give yellow

A student has been given 0.314 g of an organic compound and asked to estimate Sulphur. During the experiment, the student has obtained 0.4813 g of barium sulphate. The percentage

In the Group analysis of cations, Ba^ 2+ ~\&~ Ca^ 2+ are precipitated respectively as

Consider three metal chlorides x, y and z, where x is water soluble at room temperature, y is sparingly soluble in water at room temperature and z is soluble in hot water. x, y

By usual analysis, 1.00 g of compound (X) gave 1.79 g of magnesium pyrophosphate. The percentage of phosphorus in compound (X) is : (nearest integer) (Given, molar mass in g mol^

The correct match of the group reagents in List-I for precipitating the metal ion given in List-II from solutions, is LIST - I LIST - II (P) Passing H_2 ~S in the presence of NH_4

When a salt is treated with sodium hydroxide solution it gives gas X . On passing gas X through reagent Y a brown coloured precipitate is formed. X and Y respectively, are

Formation of Na_4[Fe(CN)_5 NOS] , a purple coloured complex formed by addition of sodium nitroprusside in sodium carbonate extract of salt indicates the presence of :

Choose the correct tests with respective observations. (A) \(CuSO _ 4 \) (acidified with acetic acid) \(+ K _ 4 [Fe(CN)_ 6] → \) Chocolate brown precipitate. (B) \(FeCl _ 3 + K _

Among the following cations, the number of cations which will give characteristic precipitate in their identification tests with K_4[Fe(CN)_6] is _____. Cu^ 2+ , Fe^ 3+ , Ba^ 2+

Identify A, B and C in the given below reaction sequence A HNO_3 ~Pb ( NO_3 )_2 H_2 SO_4 B [ (2) Acetic acid (3) K_2 CrO_4 ] (1) Ammonium acetate

Consider the following test for a group-IV cation. aligned & M^ 2+ +H_2 S arrow A (Black precipitate) + by product & A+ aqua regia arrow B+NOCl+S+H_2 O & B+KNO_2+CH_3 COOH arrow

Match List I with List II \( List-I List-II (Name of the test) (Reaction sequence involved) [M is metal] A. Borax bead test I. MCO_3 → MO Co (NO_3)_2 CoO · MO B. Charcoal cavity

During the detection of acidic radical present in a salt, a student gets a pale yellow precipitate soluble with difficulty in \(NH_4 OH\) solution when sodium carbonate extract

Match List - I with List - II. \( List - I List - II Reaction Type of redox reaction (A) Li (I) 589.2 (B) Na (II) 455.5 (C) Rb (III) 670.8 (D) Cs (IV) 780.0 \) Choose the correct

Match List I with List II \( List - I List - II (Precipitating reagent and conditions) (Cation) A. NH_4 Cl+NH_4 OH / ARKS I. Mn^ 2+ B. NH_4 OH+Na_2 CO_3 II. Pb^ 2+ C. NH_4 OH+NH_4

In a borax bead test under hot condition, a metal salt (one from the given) is heated at point B of the flame, resulted in green colour salt bead. The spin-only magnetic moment

In the precipitation of the iron group (III) in qualitative analysis, ammonium chloride is added before adding ammonium hydroxide to :

The number of white coloured salts among the following is ....... (A) SrSO _ 4 (B)Mg( NH _ 4 ) PO _ 4 (C) BaCrO _ 4 (D)Mn ( OH ) _ 2 (E) PbSO _ 4 (F) PbCrO _ 4 (G)AgBr(H) PbI _ 2

The compound that is white in color is

Molar mass of the salt from NaBr, NaNO _ 3 , KI and CaF _ 2 which does not evolve coloured vapours on heating with concentrated H _ 2 SO _ 4 is ____ g mol ^ – 1 , (Molar mass in g

Number of metal ions characterized by flame test among the following is _________. Sr ^ 2 + , Ba ^ 2 + , Ca ^ 2 + , Cu ^ 2 + , Zn ^ 2 + , Co ^ 2 + , Fe ^ 2 +

Given below are two statements: Statement-I: The gas liberated on warming a salt with dil H _ 2 SO _ 4 , turns a piece of paper dipped in lead acetate into black, it is a

The Lassiagne's extract is boiled with dil HNO _ 3 before testing for halogens because,

On passing a gas, ' X ', through Nessler's reagent, a brown precipitate is obtained. The gas ' X ' is

A reagent which gives brilliant red precipitate with Nickel ions in basic medium is

Oxidation state of Fe(Iron) in complex formed in Brown ring test.

In the wet tests for detection of various cations by precipitation, Ba ^ 2 + cations are detected by obtaining precipitate of

Formation of which complex, among the following, is not a confirmatory test of Pb ^ 2 + ions

Given below are two statements : Statement I : Upon heating a borax bead dipped in cupric sulphate in a luminous flame, the colour of the bead becomes green. Statement II : The

In the wet tests for identification of various cations by precipitation, which transition element cation doesn&#39;t belong to group IV in qualitative inorganic analysis?

A white precipitate was formed when BaCl _ 2 was added to water extract of an inorganic salt. Further, a gas ' X ' with characteristic odour was released when the formed white

Match List I with List II. List-I (Anion) List-II (gas evolved on reaction with dil. H _ 2 SO _ 4 ) (A) CO _ 3 ^ 2 - (I) Colourless gas which turns lead acetate paper black. (B) S

Which of the following is structure of a separating funnel?

Which statement is not true with respect to nitrate ion test?

In the flame test of a mixture of salts, a green flame with blue centre was observed. Which one of the following cations may be present?

During the qualitative analysis of salt with cation y ^ 2 + , addition of a reagent (X) to alkaline solution of the salt gives a bright red precipitate. The reagent (X) and the

A mixture of two salts is used to prepare a solution S, which gives the following results: Whiteprecipitate(s)only ← _ Roomtemperature ^ DiluteNaOH ( aq ) S _ (aq .

To an aqueous solution containing ions such as Al ^ 3 + , Zn ^ 2 + , Ca ^ 2 + , Fe ^ 3 + , Ni ^ 2 + , Ba ^ 2 + and Cu ^ 2 + was added conc . HCl , followed by H _ 2 S . The total

Match List-I with List-II List-I List-II Test/Reagents/Observation(s) Species detected (a) Lassaigne&#39;s Test (i) Carbon (b) Cu(II) oxide (ii) Sulphur (c) Silver nitrate (iii)

Given below are two statements: Statement I: Colourless cupric metaborate is reduced to cuprous metaborate in a luminous flame. Statement II: Cuprous metaborate is obtained by

A colorless aqueous solution contains nitrates of two metals, X and Y . When it was added to an aqueous solution of NaCl , a white precipitate was formed. This precipitate was

The ammonia evolved from the treatment of 0.30 g of an organic compound for the estimation of nitrogen was passed in 100 mL of 0.1 M sulphuric acid. The excess of acid required 20

A red solid is insoluble in water. However, it becomes soluble if some KI is added to water. Heating the red solid in a test tube results in liberation of some violet coloured

Passing H _ 2 S in to a mixture of Mn^ 2 + , Ni^ 2 + , Cu^ 2 + and Hg^ 2 + ions in an acidified aqueous solution precipitates

A solution of a metal ion when treated with KI gives a red precipitate which dissolves in excess KI to give a colourless solution. Moreover, the solution of metal ion on treatment

Gradual addition of potassium iodide solution to aqueous Bi (N O _ 3 ) _ 3 solution initially produces a dark brown precipitate which dissolves in excess of KI to give a clear

On heating a mixture of NaCl, K _ 2 Cr _ 2 O _ 7 and conc. H _ 2 SO _ 4 which of the following is formed ?

Consider following reactions: The sum of molecular masses of gas A and B is ____________ u .

The correct option(s) to distinguish nitrate salts of Mn^ 2 + and Cu^ 2 + taken separately is (are) (1) Mn^ 2 + shows the characteristic green colour in the flame test (2) only

Pick out the incorrect statement.

Which salt on heating with conc. H _ 2 S O _ 4 gives violet vapours?

Sodium fusion extract of an organic compound gives a blood red colouration with few drops of FeCl_ 3 solution. This indicates the presence of

When phosphate radical react with ammonium molybdate, the colour of precipitate obtained is

0.45 gm of an organic compound gave on combustion 0.792 gm of CO_ 2 and 0.324 gm of water. 0.24 gm of the same substance was Kjeldahlised and the ammonia liberated was absorbed in

The correct match between item 'I' and item 'II' is Item I (Compound) Item II (Reagent) (1) Lysine (P) 1-naphthol (2) Furfural (Q) ninhydrin (3) Isopropyl alcohol (R) KMnO _ 4 (4)

The green colour produced in the borax bead test of a chromium(III) salt is due to -

An organic compound &lsquo;A&rsquo; is oxidized with N a _ 2 O _ 2 followed by boiling with HN O _ 3 . The resultant solution is then treated with ammonium molybdate to yield a

The correct option(s) to distinguish nitrate salts of M n ^ 2 + andC u ^ 2 + taken separately is(are)

In the following reaction sequence in aqueous solution, the species X,Y and Z respectively, are S _ 2 O _ 3 ^ 2 - Ag ^ + → X array ll Clear Solution array Ag ^ + → Y array ll

The reagent(s) that can selectively precipitate S ^ 2 - from a mixture of S ^ 2 - and S O _ 4 ^ 2 - in aqueous solution is (are)

The pair(s) of ions where BOTH the ions are precipitated upon passing H _ 2 S gas in presence of dilute HCl, is (are)

Paragraph: An aqueous solution of metal ion M 1 reacts separately with reagents Q and R in excess to give tetrahedral and square planar complexes, respectively. An aqueous

Paragraph: An aqueous solution of metal ion M 1 reacts separately with reagents Q and R in excess to give tetrahedral and square planar complexes, respectively. An aqueous

Paragraph: An aqueous solution of a mixture of two inorganic salts, when treated with dilute H C ?, gave a precipitate ( P ) and a filtrate ( Q ) . The precipitate P was found to

Upon treatment with ammoniacal H _ 2 S , the metal ion that precipitates as a sulphide is

For the given aqueous reactions, which of the statement (s) is (are) true?

Identify the binary mixture(s) that can be separated into individual compounds, by differential extraction as shown in the given scheme.

Which of the following halides react(s) with AgNO_ 3 (aq) to give a precipitate that dissolves in Na_ 2 ~S_ 2 O_ 3 (aq) ?

A solution of a metal ion when treated with KI gives a red precipitate which dissolved in excess KI to give a colourless solution. Moreover, the solution of metal ion on treatment

A solution when diluted with H_2 O and boiled, it gives a white precipitate. On addition of excess NH_4 Cl / NH_4 OH , the volume of precipitate decreases leaving behind a white

Brown ring test is used for the detection of which radical?

Give the correct order of initials T or F for following statements. Use T if statement is true and F if it is false. (i) Cu + undergoes disproportionation to Cu and Cu 2 + in

In the wet tests for identification of various cations by precipitation, which transition element cation doesn't belong to group IV in qualitative inorganic analysis?

Match List-I with List-II List-I List-II Test/Reagents/Observation(s) Species detected (a) Lassaigne's Test (i) Carbon (b) Cu(II) oxide (ii) Sulphur (c) Silver nitrate (iii)

An organic compound ‘A’ is oxidized with N a _ 2 O _ 2 followed by boiling with HN O _ 3 . The resultant solution is then treated with ammonium molybdate to yield a