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Previous year question hub

Some Basic Concepts Of Chemistry - Physical Chemistry - Chemistry Previous Year Questions

Practice Some Basic Concepts Of Chemistry - Physical Chemistry - Chemistry previous year questions organised from real papers, with year-wise coverage and clear topic navigation.

8Papers
8Years
18Questions
1Topics

Some Basic Concepts Of Chemistry question pattern

Every graph below is calculated only from this selection.

Questions by year

Year-wise coverage for Some Basic Concepts Of Chemistry. Each bar uses a separate theme-derived color.

Difficulty distribution

How the classified questions are distributed by difficulty.

Not classified 18 100%

Question type distribution

MCQ, numerical, multiple-select and other formats found in these papers.

Multiple Choices 18 100%

Subject weightage

Top subjects by unique question coverage.

Chemistry
18 Qs

Most asked topics

Top topics across the included previous year papers.

Physical Chemistry
18 Qs

Subtopic coverage

Top subtopics inside this exact selection.

Some Basic Concepts Of Chemistry
18 Qs

Paper coverage

Question coverage for the most populated papers. Every active PYP paper remains listed below.

WB JEE 2025
1 Qs
WB JEE 2023
2 Qs
WB JEE 2022
4 Qs
WB JEE 2021
1 Qs
WB JEE 2020
4 Qs
WB JEE 2019
2 Qs
WB JEE 2018
2 Qs
WB JEE 2017
2 Qs

Included previous year papers

Newest papers appear first. Sort by year, question coverage or name.

PaperYear / sessionQuestions in this viewOpen
WB JEE 202520251View paper
WB JEE 202320232View paper
WB JEE 202220224View paper
WB JEE 202120211View paper
WB JEE 202020204View paper
WB JEE 201920192View paper
WB JEE 201820182View paper
WB JEE 201720172View paper

All Some Basic Concepts Of Chemistry previous year questions

Practice every matching question in batches of 20, with every available option.

1
2017 · Chemistry · Physical Chemistry · Some Basic Concepts Of Chemistry
WB JEE 2017
Which of the following has the dimension if [\(M{L^0}{T^{ - 2}}\)] ?
A
Coefficient of viscosity
B
Surface tension
C
Vapour pressure
D
Kinetic energy
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2
2017 · Chemistry · Physical Chemistry · Some Basic Concepts Of Chemistry
WB JEE 2017
In a flask, the weight ratio of CH4(g) and SO2(g) at 298 K and 1 bar is 1 : 2. The ratio of the number of molecules of SO2(g) and CH4(g) is
A
1 : 4
B
4 : 1
C
1 : 2
D
2 : 1
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3
2018 · Chemistry · Physical Chemistry · Some Basic Concepts Of Chemistry
WB JEE 2018
How many moles of electrons will weigh one kilogram?
A
6.023 \(\times\) 1023
B
\({1 \over {9.108}} \times {10^{31}}\)
C
\({{6.023} \over {9.108}} \times {10^{54}}\)
D
\({1 \over {9.108 \times 6.023}} \times {10^8}\)
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4
2018 · Chemistry · Physical Chemistry · Some Basic Concepts Of Chemistry
WB JEE 2018
A metal M (specific heat 0.16) forms a metal chloride with 65% chlorine present in it. The formula of the metal chloride will be
A
MCl
B
MCl2
C
MCl3
D
MCl4
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5
2019 · Chemistry · Physical Chemistry · Some Basic Concepts Of Chemistry
WB JEE 2019
In the crystalline solid MSO4 . nH2O of molar mass 250 g mol\(-\)1, the percentage of anhydrous salt is 64 by weight. The value of n is
A
2
B
3
C
5
D
7
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6
2019 · Chemistry · Physical Chemistry · Some Basic Concepts Of Chemistry
WB JEE 2019
At S.T.P. the volume of 7.5 g of a gas is 5.6 L. The gas is
A
NO
B
N2O
C
CO
D
CO2
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7
2020 · Chemistry · Physical Chemistry · Some Basic Concepts Of Chemistry
WB JEE 2020
The mole fraction of ethanol in water is 0.08. Its molality is
A
6.32 mol kg-1
B
4.83 mol kg-1
C
3.82 mol kg-1
D
2.84 mol kg-1
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8
2020 · Chemistry · Physical Chemistry · Some Basic Concepts Of Chemistry
WB JEE 2020
5 mL of 0.1 M Pb(NO3)2 is mixed with 10 mL of 0.02 M KI. The amount of PbI2 precipitated will be about
A
10-2 mol
B
10-4 mol
C
2 \(\times\) 10-4 mol
D
10-3 mol
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9
2020 · Chemistry · Physical Chemistry · Some Basic Concepts Of Chemistry
WB JEE 2020
What will be the mass of one atom of 12C?
A
1 amu
B
1.9923 \(\times\) 10-23g
C
1.6603 \(\times\) 10-22g
D
6 amu
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10
2020 · Chemistry · Physical Chemistry · Some Basic Concepts Of Chemistry
WB JEE 2020
Which of the following has the largest number of atoms?
A
1 g of Ag
B
1 g of Fe
C
1 g of Cl2
D
1 g of Mg
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11
2021 · Chemistry · Physical Chemistry · Some Basic Concepts Of Chemistry
WB JEE 2021
The mole fraction of a solute in a binary solution is 0.1 at 298 K, molarity of this solution is same as its molality. Density of this solution at 298 K is 2.0 g cm\(-\)3. The ratio of molecular weights of the solute and the solvent (Msolute / Msolvent) is
A
9
B
\({1 \over {9}}\)
C
4.5
D
\({1 \over {4.5}}\)
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12
2022 · Chemistry · Physical Chemistry · Some Basic Concepts Of Chemistry
WB JEE 2022

How much solid oxalic acid (Molecular weight 126) has to be weighed to prepare 100 ml. exactly 0.1 (N) oxalic acid solution in water?

A
1.26 g
B
0.126 g
C
0.63 g
D
0.063 g
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13
2022 · Chemistry · Physical Chemistry · Some Basic Concepts Of Chemistry
WB JEE 2022

1 mL of water has 25 drops. Let N0 be the Avogadro number. What is the number of molecules present in 1 drop of water ? (Density of water = 1 g/mL)

A
\({{0.02} \over 9}{N_0}\)
B
\({{18} \over {25}}{N_0}\)
C
\({{25} \over {18}}{N_0}\)
D
\({{0.04} \over {25}}{N_0}\)
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14
2022 · Chemistry · Physical Chemistry · Some Basic Concepts Of Chemistry
WB JEE 2022

$${C_6}{H_6}(liq) + {{15} \over 2}{O_2}(g) \to 6C{O_2}(g) + 3{H_2}O(liq)$$

Benzene burns in oxygen according to the above equation. What is the volume of oxygen (at STP) needed for complete combustion of 39 gram of liquid benzene?

A
11.2 litre
B
22.4 litre
C
84 litre
D
168 litre
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15
2022 · Chemistry · Physical Chemistry · Some Basic Concepts Of Chemistry
WB JEE 2022

A metal (M) forms two oxides. The ratio M:O (by weight) in the two oxides are 25:4 and 25:6. The minimum value of atomic mass of M is

A
50
B
100
C
150
D
200
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16
2023 · Chemistry · Physical Chemistry · Some Basic Concepts Of Chemistry
WB JEE 2023

Arrange the following in order of increasing mass

I. 1 mole of N\(_2\)

II. 0.5 mole of O\(_3\)

III. \(3.011\times10^{23}\) molecules of O\(_2\)

IV. 0.5 gram atom of O\(_2\)

A
IV < III < II < I
B
IV < I < III < II
C
III < II < IV < I
D
I < III < II < IV
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17
2023 · Chemistry · Physical Chemistry · Some Basic Concepts Of Chemistry
WB JEE 2023

63 g of a compound (Mol. Wt. = 126) was dissolved in 500 g distilled water. The density of the resultant solution as 1.126 g/ml. The molarity of the solution is

A
1.25 M
B
1.0 M
C
0.75 M
D
1.1 M
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18
2025 · Chemistry · Physical Chemistry · Some Basic Concepts Of Chemistry
WB JEE 2025

How many oxygen atoms are present in 0.36 g of a drop of water at STP?

A
$6.023 \times 10^{22}$
B
$1.205 \times 10^{22}$
C
$6.023 \times 10^{23}$
D
$1.205 \times 10^{23}$
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