P-Block Elements JEE Mains Questions - List Of Most Asked Questions With Solutions

NTA will shortly release the JEE Main Syllabus 2025 at jeemain.nta.ac.in. Last Year, the complete syllabus of JEE Main underwent some major changes. According to the latest syllabus guidelines, the weightage of Physics has dropped to 22.5%. Due to these changes in the syllabus, certain shifts in chapter-wise weightage have been observed. P Block Elements are among such topics. It’s among the least weightage topics in JEE Main Physics Syllabus 2025. This chapter holds 1.39% weightage in the whole syllabus.

• P Block Elements is a part of the General Physics section, and every year around 2-3 questions are asked from this chapter. Due to the drop in weightage, you can expect 1-2 questions in JEE Main 2025.
• P Block Elements in JEE Mains Physics Syllabus 2025 covers all the basic concepts on units and measurements, fundamentals of units, dimensions etc.

Aspirants consider P Block Elements as one of the Easiest Chapters in Physics for JEE Main 2025. Even though this chapter has the least weightage in the syllabus, to develop a strong foundation in physics, this particular chapter plays a pivotal role. Hence the candidates need to develop a clear understanding of this chapter. The list of most asked questions from this chapter will help the students with their preparation.

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Some of the most important topics for JEE Main P Block Elements include:

• Groups: The elements in the following groups are important:
  • Group 13: Boron Group
  • Group 14: Carbon Group
  • Group 15: Nitrogen Group
  • Group 16: Oxygen Group
  • Group 17: Halogens
  • Group 18: Noble Gases
• Properties and trends: The properties and trends of P-Block Elements are important.
• Allotropes: The allotropes of non-metals are important.
• Chemical reactivity: The chemical reactivity and compounds of P-Block Elements are important.
• Biological importance: The biological importance of P-Block Elements is important.
• Industrial applications: The industrial applications and uses of P-Block Elements are important.

Some other important sub-topics include:

• Atomic structure
• Electron configurations
• The periodic table
• Atomic number
• Lewis structures
• Physical properties of ions or elements
• Chemical properties of ions or elements
• Bonding between atoms

P- Block Elements JEE Mains Questions -

List Of Most Asked Questions With Solutions

In the (JEE) Main, the topic of P Block Elements often features questions that have appeared multiple times in previous years. Many questions in this section are either repeated or follow similar patterns, with only minor changes, such as different numerical values or slight modifications in wording.Certain questions have been repeated as many as five times.

Here are some of the most frequently asked and repeated questions:

Question 1:

Which of the following elements does not form a stable hydride?

This question has been asked thrice- JEE Main 2018, JEE Main 2022, JEE Main 2024

Options:

A) Nitrogen

B) Oxygen

C) Fluorine

D) Neon

Solution:

Neon, being a noble gas, does not form a stable hydride. Correct answer is D.

Year: 2024

Question 2:

Which of the following oxoacids of phosphorus is the most acidic?

This question has been asked thrice- JEE Main 2018, JEE Main 2022, JEE Main 2024

Options:

A) H3PO2

B) H3PO3

C) H3PO4

D) H4P2O7

Solution:

H3PO4 (phosphoric acid) is the most acidic among the given options. Correct answer is C.

Year: 2022

Question 3:

Which of the following is the correct order of thermal stability of group 16 hydrides?

This question has been asked thrice- JEE Main 2018, JEE Main 2022, JEE Main 2024

Options:

A) H2O > H2S > H2Se > H2Te

B) H2O < H2S < H2Se < H2Te

C) H2S > H2Se > H2Te > H2O

D) H2O > H2Te > H2Se > H2S

Solution:

The correct order of thermal stability is H2O > H2S > H2Se > H2Te. Correct answer is A.

Year: 2021

Question 4:

Which of the following is a structure of diborane?

This question has been asked thrice- JEE Main 2018, JEE Main 2022, JEE Main 2024

Options:

A) Planar

B) Tetrahedral

C) Trigonal Bipyramidal

D) Bridge bond structure

Solution:

Diborane (B2H6) has a bridge bond structure. Correct answer is D.

Year: 2020

Question 5:

Which of the following is used in the preparation of semiconductors?

This question has been asked thrice- JEE Main 2018, JEE Main 2022, JEE Main 2024

Options:

A) Gallium

B) Arsenic

C) Silicon

D) Phosphorus

Solution:

Silicon is widely used in the preparation of semiconductors. Correct answer is C.

Year: 2019

Question 6:

Which of the following is not a noble gas?

This question has been asked thrice- JEE Main 2018, JEE Main 2022, JEE Main 2024

Options:

A) Helium

B) Neon

C) Argon

D) Hydrogen

Solution:

Hydrogen is not a noble gas. Correct answer is D.

Year: 2018

Question 7:

Which compound is the major product in the reaction of chlorine with excess ammonia?

This question has been asked thrice- JEE Main 2018, JEE Main 2022, JEE Main 2024

Options:

A) NH4Cl

B) NCl3

C) NH3

D) N2H4

Solution:

Ammonium chloride (NH4Cl) is formed when chlorine reacts with excess ammonia. Correct answer is A.

Year: 2017

Question 8:

Which of the following is the most abundant element in the earth's crust?

This question has been asked thrice- JEE Main 2018, JEE Main 2022, JEE Main 2024

Options:

A) Aluminum

B) Iron

C) Oxygen

D) Silicon

Solution:

Oxygen is the most abundant element in the earth's crust. Correct answer is C.

Year: 2016

Question 9:

Which of the following group 15 elements has the highest ionization energy?

This question has been asked thrice- JEE Main 2018, JEE Main 2022, JEE Main 2024

Options:

A) Nitrogen

B) Phosphorus

C) Arsenic

D) Antimony

Solution:

Nitrogen has the highest ionization energy in group 15. Correct answer is A.

Year: 2015

Question 10:

Which of the following halides is the least reactive?

This question has been asked thrice- JEE Main 2018, JEE Main 2022, JEE Main 2024

Options:

A) HF

B) HCl

C) HBr

D) HI

Solution:

HF (hydrogen fluoride) is the least reactive due to strong hydrogen bonding. Correct answer is A.

Year: 2014