p-Block Elements — Part II (Group 15-18) — JEE Main PYQs & Practice Questions

p-Block Elements — Part II (Group 15-18) is a Chemistry chapter in the JEE Main syllabus. This page brings together 113 previous-year and practice questions on p-Block Elements — Part II (Group 15-18), organised into 4 topics: Group 15: Nitrogen Family, Group 16: Oxygen Family, Group 17: Halogens and Group 18: Noble Gases. Most questions come with a step-by-step solution you can work through free in PrepWiser.

Download p-Block Elements — Part II (Group 15-18) JEE Main PYQs as a free PDF (with answer key)

Revise this chapter: Revision notes · Formula sheet

Chapter weightage: how many questions each chapter had per shift in the 2024–26 papers.

Group 15: Nitrogen Family

• Given below are the oxides: Na₂O, As₂O₃, N₂O, NO and Cl₂O₇ Number of amphoteric oxides…
• A 'p'-block element (E) and hydrogen form a binary cation (EHₓ)⁺, while EH₃ on treatment…
• N₂ has a triple bond while P₄ has single bonds only.
• One mole of P₄ reacts with 8 moles of SOCl₂ to give 4 moles of A, x mole of SO₂ and 2…
• Match List - I with List - II : List - I Name of oxo acid | List - II Oxidation state of…
• Given below are two statements : Statement I : The pentavalent oxide of group-15…
• Nitrogen gas is obtained by thermal decomposition of :
• The total number of acidic oxides from the following list is NO, N₂O, B₂O₃, N₂O₅, CO…
• Given below are two statements: Statement I: Nitrogen forms oxides with +1 to +5…
• A monoatomic anion (A ) has 45 neutrons and 36 electrons. Atomic mass, group in the…
• Choose the correct statements about the hydrides of group 15 elements. A. The stability…
• Total number of acidic oxides among N₂O₃,NO₂,N₂O,Cl₂O₇,SO₂,CO,CaO,Na₂O and NO is…
• Given below are two statements : Statement I : SbCl₅ is more covalent than SbCl₃…
• The reaction of NO with N₂O₄ at 250 K gives :
• Given below are two statements: Statement-I : Methane and steam passed over a heated Ni…
• In a molecule of pyrophosphoric acid, the number of P - OH, P = O and P - O - P…
• The oxide which contains an odd electron at the nitrogen atom is :
• "A" obtained by Ostwald's method involving air oxidation of NH₃, upon further air…
• Reaction of ammonia with excess Cl₂ gives :
• A → ^(573 K) Red phosphorus → _(under pressure)^(heat ; 803 K) B Red phosphorus is…

Group 16: Oxygen Family

• Which pair of oxides is acidic in nature?
• Given below are two statements : one is labelled as Assertion (A) and the other is…
• Consider the following sulphur based oxoacids. H₂ SO₃, H₂ SO₄, H₂ S₂ O₈ and H₂S₂ O₇…
• The number of S = O bonds present in sulphurous acid, peroxodisulphuric acid and…
• Chalcogen group elements are :
• The correct order of melting points of hydrides of group 16 elements is :
• Choose the correct statements from the following A. All group 16 elements form oxides of…
• The nature of oxide (TeO₂) and hydride (TeH₂) formed by Te , respectively are :
• The catenation property of chalcogens (Group 16) decreases in the order:
• Given below are two statements : Statement (I) : Oxygen being the first member of group…
• Which of the following oxoacids of sulphur contains "S" in two different oxidation states?
• Given below are two statements : Statement I : α and β forms of sulphur can change…
• Given below are two statements: Statement I : H₂Se is more acidic than H₂Te Statement II…
• Among the following allotropic forms of sulphur, the number of allotropic forms, which…
• The large difference between the melting and boiling points of oxygen and sulphur may be…
• The most stable allotropic form of sulfur is:
• Number of oxygen atoms present in chemical formula of fuming sulphuric acid is…
• Bond dissociation energy of "E-H" bond of the "H₂ E " hydrides of group 16 elements…
• Reaction of an inorganic sulphite X with dilute H₂SO₄ generates compound Y. Reaction of…
• Given below are two statements : Statement I : The covalency of oxygen is generally two…

Group 17: Halogens

• The number of halogen elements is x.
• Concentrated HNO₃ reacts with Iodine to give :
• The correct order of bond dissociation enthalpy of halogens is :
• Chlorine reacts with hot and concentrated NaOH and produces compounds (X) and (Y)…
• In the following reaction, products (A) and (B) respectively, are : NaOH + Cl₂ → (A) +…
• The bond enthalpy of C-Cl bond is lower than C-F bond because:
• Given below are two statements : one is labelled as Assertion A and the other is…
• Which halogen is known to cause the reaction given below : 2 Cu²⁺+4 X⁻ → Cu₂ X₂(s)+X₂
• The incorrect statement is :
• In the following reactions, the total number of oxygen atoms in X and Y is ___________…
• The correct group of halide ions which can be oxidised by oxygen in acidic medium is :
• Which one of the following correctly represents the order of stability of oxides, X₂O…
• Given below are two statements : Statement I : The increasing order of boiling point of…
• Aqua regia is used for dissolving noble metals (Au, Pt, etc.). The gas evolved in this…
• Astatine is a radioactive element and resembles iodine chemically.
• The interhalogen compound formed from the reaction of bromine with excess of fluorine is…
• Number of Cl = O bonds in chlorous acid, chloric acid and perchloric acid respectively…
• Given below are two statements: Statement I : Chlorine can easily combine with oxygen to…
• The F⁻ ions make the enamel on teeth much harder by converting hydroxyapatite (the…
• The number of halogen/(s) forming halic (V) acid is ___________.

Group 18: Noble Gases

• Helium has the lowest boiling point of any element.
• Inert gases have positive electron gain enthalpy. Its correct order is :
• Give below are two statements: Statement - I: Noble gases have very high boiling points…
• XeF₄ reacts with SbF₅ to form [XeFₘ]ⁿ⁺[SbF_y]ᶻ⁻. m+n+y+z= __________
• A xenon compound 'A' upon partial hydrolysis gives XeO₂F₂. The number of lone pair of…
• The compound xenon fluorides are strong oxidizing agents because xenon:
• Which noble gas is NOT found in the atmosphere in significant amounts?
• The difference in the oxidation state of Xe between the oxidised product of Xe formed on…
• The number of noble gases in the periodic table is x.

More Chemistry chapters

• Mole Concept & Stoichiometry
• Atomic Structure
• Gaseous State
• Chemical Thermodynamics
• Chemical Equilibrium
• Ionic Equilibrium
• Redox Reactions
• Solutions & Colligative Properties
• Electrochemistry
• Chemical Kinetics
• Solid State
• Surface Chemistry
• Nuclear & Radiochemistry
• Periodic Table & Periodicity
• Chemical Bonding & Molecular Structure
• Hydrogen & s-Block Elements
• p-Block Elements — Part I (Group 13 & 14)
• Environmental Chemistry
• d & f Block Elements
• Coordination Compounds
• Metallurgy
• Qualitative Analysis — Salt Analysis
• Purification & Characterisation of Organic Compounds
• General Organic Chemistry (GOC)
• Hydrocarbons — Alkanes
• Hydrocarbons — Alkenes & Alkynes
• Hydrocarbons — Aromatic (Arenes)
• Halogen Derivatives — Haloalkanes & Haloarenes
• Alcohols, Phenols & Ethers
• Aldehydes & Ketones
• Carboxylic Acids & Their Derivatives
• Amines & Diazonium Salts
• Carbohydrates & Biomolecules
• Polymers
• Chemistry in Everyday Life
• Practical Organic Chemistry

Frequently asked questions

How many p-Block Elements — Part II (Group 15-18) questions are there for JEE Main?

PrepWiser has 113 p-Block Elements — Part II (Group 15-18) questions for JEE Main, grouped into 4 topics such as Group 15: Nitrogen Family, Group 16: Oxygen Family and Group 17: Halogens.

Are these p-Block Elements — Part II (Group 15-18) questions from previous-year JEE Main papers?

Yes — most are genuine previous-year questions from past JEE Main papers, and the rest are practice questions written to match the JEE Main pattern and difficulty.

Where can I see the answers and solutions to these p-Block Elements — Part II (Group 15-18) questions?

Open any p-Block Elements — Part II (Group 15-18) question in PrepWiser (it is free) to attempt it; most come with a step-by-step solution.