The JEE Main Chemistry section requires speed and accuracy, along with a thorough understanding of the Periodic Trends In Properties Of Elements. This article provides a set of JEE Main PYQs on Periodic Trends In Properties Of Elements to help you understand the topic and improve your problem-solving skills with the help of detailed solutions by ensuring conceptual clarity, which will help you in the JEE Main 2026 preparation.
Whether you're revising the basics or testing your knowledge, these JEE Main PYQs will serve as a valuable practice resource.
The JEE Main 2026 exam is likely to continue on the same pattern as JEE Main 2025. Out of 90 questions, students can expect a fair mix from all three subjects. To get an edge, going through JEE Main previous year questions (PYQs) is one of the best strategies.
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JEE Main PYQs on Periodic Trends in Properties of Elements
1.
The large difference between the melting and boiling points of oxygen and sulphur may be explained on the basis of- Atomic size
- Atomicity
- Electronegativity
- Electron gain enthalpy
2.
The atomic number of the element from the following with lowest $ 1^{\text{st}} $ ionization enthalpy is:- 87
- 19
- 32
- 35
3.
Given below are two statements:
Statement (I): The first ionisation enthalpy of group 14 elements is higher than the corresponding elements of group 13.
Statement (II): Melting points and boiling points of group 13 elements are in general much higher than those of the corresponding elements of group 14. Choose the most appropriate answer from the options given below:- Statement I is correct but Statement II is incorrect
- Statement I is incorrect but Statement II is correct
- Both Statement I and Statement II are incorrect
- Both Statement I and Statement II are correct
4.
The correct orders among the following are:
[A.] Atomic radius : \(B<Al<Ga<In<Tl\)
[B.] Electronegativity : \(Al<Ga<In<Tl<B\)
[C.] Density : \(Tl<In<Ga<Al<B\)
[D.] 1st Ionisation Energy :
In\(<Al<Ga<Tl<B\)
Choose the correct answer from the options given below :- B and D Only
- A and C Only
- C and D Only
- A and B Only
5.
Given below are two statements :
Statement I : Gallium is used in the manufacturing of thermometers.
Statement II : A thermometer containing gallium is useful for measuring the freezing point (256 K) of brine solution.
In the light of the above statement, choose the correct answer from the options given below :- Both Statement I and Statement II are false
- Statement I is false but Statement II is true.
- Both Statement I and Statement II are true.
- Statement I is true but Statement II is false.
6.
Given below are two statements:
Statement I: $ H_2Se $ is more acidic than $ H_2Te $
Statement II: $ H_2Se $ has higher bond enthalpy for dissociation than $ H_2Te $
In the light of the above statements, choose the correct answer from the options given below.- Statement I is false but Statement II is true
- Statement I is true but Statement II is false
- Both Statement I and Statement II are false
- Both Statement I and Statement II are true
7.
Given below are the atomic numbers of some group 14 elements. The atomic number of the element with the lowest melting point is:- 14
- 6
- 82
- 50
8.
Given below are two statements:
Statement (I): According to the Law of Octaves, the elements were arranged in the increasing order of their atomic number.
Statement (II): Meyer observed a periodically repeated pattern upon plotting physical properties of certain elements against their respective atomic numbers.
In the light of the above statements, Choose the correct answer from the options given below:- Both Statement I and Statement II are false
- Statement I is true but Statement II is false
- Both Statement I and Statement II are true
- Statement I is false but Statement II is true
9.
The elements of Group 13 with highest and lowest first ionisation enthalpies are respectively:
B & Ga
B & Tl
Ti & B
B & In
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