p-block – JEE Main Previous Year Questions with Solutions
JEE Main Previous Year Papers Questions of Chemistry With Solutions are available at eSaral. Simulator Previous Years AIEEE/JEE Mains Questions
Q. Which one of the following reactions of Xenon compounds is not feasible ? (1) $2 \mathrm{XeF}_{2}+2 \mathrm{H}_{2} \mathrm{O} \rightarrow 2 \mathrm{Xe}+4 \mathrm{HF}+\mathrm{O}_{2}$ (2) $\mathrm{XeF}_{6}+\mathrm{RbF} \rightarrow \mathrm{Rb}\left[\mathrm{XeF}_{7}\right]$ (3) $\mathrm{XeO}_{3}+6 \mathrm{HF} \rightarrow \mathrm{XeF}_{6}+3 \mathrm{H}_{2} \mathrm{O}$ (4) $3 \mathrm{XeF}_{4}+6 \mathrm{H}_{2} \mathrm{O} \rightarrow 2 \mathrm{Xe}+\mathrm{XeO}_{3}+12 \mathrm{HF}+1.5 \mathrm{O}_{2}$ [aieee-2009]

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Sol. (3)

Q. Which of the following statement is wrong ? (1) Single N–N bond is weaker than the single P–P bond (2) $\mathrm{N}_{2} \mathrm{O}_{4}$ has two resonance structures (3) The stability of hydrides increases from NH3 to BiH3 in group 15 of the periodic table (4) Nitrogen cannot form $\mathrm{d} \pi-\mathrm{p} \pi$ bond [aieee-2011]

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Sol. (3) The stability of hydrides decreases from $\mathrm{NH}_{3}$ to $\mathrm{BiH}_{3}$ in group 15

Q. Which of the following statements regarding sulphur is incorrect ? (1) At $600^{\circ} \mathrm{C}$ the gas mainly consists of $\mathrm{S}_{2}$ molceules (2) The oxidation state of sulphur is never less than +4 in its compounds (3) $\mathrm{S}_{2}$ molecule is paramagnetic (4) The vapour at $200^{\circ} \mathrm{C}$ consists mostly of $\mathrm{S}_{8}$ rings [aieee-2011]

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Sol. (2)

Q. Boron cannot form which one of the following anions ? (1) $\mathrm{B}(\mathrm{OH})_{4}^{-}$ (2) $\mathrm{BO}_{2}^{-}$ (3) $\mathrm{BF}_{6}^{3-}$ (4) $\mathrm{BH}_{4}^{-}$ [aieee-2011]

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Sol. (3) Due to the absence of vacant $2 \mathrm{d}-$ orbital, $\left[\mathrm{BF}_{6}\right]^{3-}$ is not form

Q. In view of the signs of $\Delta_{\mathrm{r}} \mathrm{G}^{\circ}$ for the following reactions $\mathrm{PbO}_{2}+\mathrm{Pb} \rightarrow 2 \mathrm{PbO}, \Delta_{\mathrm{r}} \mathrm{G}^{\circ}<0$ $\mathrm{SnO}_{2}+\mathrm{Sn} \rightarrow 2 \mathrm{SnO}, \Delta_{\mathrm{r}} \mathrm{G}^{\circ}>0$ Which oxidation states are more characteristic for lead and tin ? (1) For lead + 4, for tin + 2 (2) For lead + 2, for tin + 2 (3) For lead + 4, for tin + 4 (4) For lead + 2, for tin + 4 [aieee-2011]

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Sol. (4)

Q. The number of $\mathrm{S}-\mathrm{S}$ bonds in $\mathrm{SO}_{3}, \mathrm{S}_{2} \mathrm{O}_{3}^{2-}, \mathrm{S}_{2} \mathrm{O}_{6}^{2-}$ and $\mathrm{S}_{2} \mathrm{O}_{8}^{2-}$ respectively are :- (1) 1, 0, 1, 0 (2) 0, 1, 1, 0 (3) 1, 0, 0, 1 (4) 0, 1, 0, 1 [JEE(Main)Online-2012]

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Sol. (2)

Q. Which one of the following depletes ozone layer ? (1) NO and freons (2) $\mathrm{SO}_{2}$ (3) CO ( 4) $\mathrm{CO}_{2}$ [JEE(Main)Online-2012]

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Sol. (1)

Q. In which of the following arrangements, the sequence is not strictly according to the property written against it ? (1) $\mathrm{CO}_{2}<\mathrm{SiO}_{2}<\mathrm{SnO}_{2}<\mathrm{PbO}_{2}$ : increasing oxidisin g power (2) B < C < O < N : increasing first ionisation enthalpy (3) $\mathrm{NH}_{3}<\mathrm{PH}_{3}<\mathrm{AsH}_{3}<\mathrm{SbH}_{3}$ : increasing basic strength (4) HF < HCl < HBr < HI : increasing acid strength [JEE(Main)Online-2012]

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Sol. (3) Basic strength order : $\mathrm{NH}_{3}>\mathrm{PH}_{3}>\mathrm{AsH}_{3}>\mathrm{SbH}_{3}$

Q. The compound of Xenon with zero dipole moment is :- (1) $\mathrm{XeO}_{3}$ (2) $\mathrm{XeO}_{2}$ (3) $\mathrm{XeF}_{4}$ (4) $\mathrm{XeOF}_{4}$ [JEE(Main)Online-2012]

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Sol. (3)

Q. Which one of the following depletes ozone layer ? (1) NO and freons (2) $\mathrm{SO}_{2}$ (3) CO (4) $\mathrm{CO}_{2}$ [JEE(Main)Online-2012]

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Sol. (1)

Q. The formation of molecular complex $\mathrm{BF}_{3}-\mathrm{NH}_{3}$ results in a change in hybridisation of boron :- (1) from $\operatorname{sp}^{3}$ to $\mathrm{sp}^{3} \mathrm{d}$ (2) from $\mathrm{sp}^{2}$ to $\mathrm{dsp}^{2}$ (3) from $\operatorname{sp}^{3}$ to $\mathrm{sp}^{2}$ (4) from $\mathrm{sp}^{2}$ to $\mathrm{sp}^{3}$ [JEE(Main)Online-2012]

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Sol. (4)

Q. Trigonal bipyramidal geometry is shown by: (1) $\mathrm{XeO}_{3} \mathrm{F}_{2}$ (2) $\mathrm{XeOF}_{2}$ (3) $\left[\mathrm{XeF}_{8}\right]^{2-}$ [JEE(Main)Online-2013]

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Sol. (1)

Q. Oxidation state of sulphur in anions $\mathrm{SO}_{3,}^{2-} \mathrm{S}_{2} \mathrm{O}_{4}^{2-}$ and $\mathrm{S}_{2} \mathrm{O}_{6}^{2-}$ increases in the orders : (1) $\mathrm{S}_{2} \mathrm{O}_{6}^{2-}<\mathrm{S}_{2} \mathrm{O}_{4}^{2-}<\mathrm{SO}_{3}^{2-}$ (2) $\mathrm{SO}_{3}^{2-}<\mathrm{S}_{2} \mathrm{O}_{4}^{2-}<\mathrm{S}_{2} \mathrm{O}_{6}^{2-} (3)$\mathrm{S}_{2} \mathrm{O}_{4}^{2-}<\mathrm{SO}_{3}^{2-}<\mathrm{S}_{2} \mathrm{O}_{6}^{2-}$(4)$\mathrm{S}_{2} \mathrm{O}_{4}^{2-}<\mathrm{S}_{2} \mathrm{O}_{6}^{2-}<\mathrm{SO}_{3}^{2-}$[JEE(Main)Online-2013] Download eSaral App for Video Lectures, Complete Revision, Study Material and much more... Sol. (3) Q.$\mathrm{XeO}_{4}$molecule is tetrahedral having: (1) Two p$\pi$– d$\pi$bonds (2) Four p$\pi$– d$\pi$bonds (3) One p$\pi$-d$\pi$bond (4) Three p$\pi$-d$\pi$bonds [JEE(Main)Online-2013] Download eSaral App for Video Lectures, Complete Revision, Study Material and much more... Sol. (2)$\rightarrow \mathrm{sp}^{3}$hybridisation$\rightarrow$No. of$(\mathrm{p} \pi-\mathrm{d} \pi)$bonds$=4$Q. The shape of \mathrm{IF}_{6}^{-} is : (1) Trigonally distorted octahedron (2) Pyramidal (3) Octahedral (4) Square antiprism [JEE(Main)Online-2013] Download eSaral App for Video Lectures, Complete Revision, Study Material and much more... Sol. (1) Trigonally distorted octahedron Q. Which has trigonal bipyramidal shape ? (1)$\mathrm{XeOF}_{4}$(2)$\mathrm{XeO}_{3}$(3)$\mathrm{XeO}_{3} \mathrm{F}_{2}$(4)$\mathrm{XeOF}_{2}$[JEE(Main)Online-2013] Download eSaral App for Video Lectures, Complete Revision, Study Material and much more... Sol. (3) Q. The catenation tendency of C, Si and Ge is in the order Ge < Si < C. The bond energies (in kJ$\mathrm{mol}^{-1}$) of C — C, Si —Si and Ge—Ge bonds are respectively : (1) 348, 260, 297 (2) 348, 297, 260 (3) 297, 348, 260 (4) 260, 297, 348 [JEE(Main)Online-2013] Download eSaral App for Video Lectures, Complete Revision, Study Material and much more... Sol. (2) Q. The gas evolved on heating$\mathrm{CaF}_{2}$and$\mathrm{SiO}_{2}$with concentrated$\mathrm{H}_{2} \mathrm{SO}_{4}$, on hydrolysis gives a white gelatinous precipitate. The precipitate is: (1) silica gel (2) silicic acid (3) hydrofluosilicic acid (4) calciumfluorosilicate [JEE(Main)Online-2014] Download eSaral App for Video Lectures, Complete Revision, Study Material and much more... Sol. (2) Q. Shapes of certain interhalogen compounds are stated below. Which one of them is not correctly stated? (1) IF_$_{7}:$Pentagonal bipyramid (2) BrF$_{5}:$Trigonal bipyramid (3) ICl_3: Planar dimeric (4)$\mathrm{BrF}_{3}:$Planar T-shaped [JEE(Main)Online-2014] Download eSaral App for Video Lectures, Complete Revision, Study Material and much more... Sol. (2) Q. Which of the following series correctly represents relations between the elements from X to Y? X  Y [JEE(Main)Online-2014] Download eSaral App for Video Lectures, Complete Revision, Study Material and much more... Sol. (3) Q. Which of the following statements about the depletion of ozone layer is correct? (1) The problem of ozone depletion is more serious at poles because ice crystals in the clouds over poles act as catalyst for photochemical reactions involving the decomposition of ozone by Cl• and ClO• radicals (2) The problem of ozone depletion is less serious at poles because$\mathrm{NO}_{2}$solidifies and is not available for consuming ClO• radicals (3) Oxides of nitrogen also do not react with ozone in stratosphere (4) Freons, chlorofluorocarbons, are inert chemically, they do not react with ozone in stratosphere [JEE(Main)Online-2014] Download eSaral App for Video Lectures, Complete Revision, Study Material and much more... Sol. (1) Q. Which of the following xenon-OXO compounds may not be obtained by hydrolysis of xenon fluorides ? (1)$\mathrm{XeO}_{2} \mathrm{F}_{2}$(2)$\mathrm{XeO}_{3}$(3)$\mathrm{XeO}_{4}$(4)$\mathrm{XeOF}_{4}$[JEE(Main)Online-2014] Download eSaral App for Video Lectures, Complete Revision, Study Material and much more... Sol. (3) Q. Hydrogen peroxide acts both as an oxidising and as a reducing agent depending upon the nature of the reacting species. In which of the following cases$\mathrm{H}_{2} \mathrm{O}_{2}$acts as a reducing agent in acid medium ? (1)$\mathrm{MnO}_{4}^{-}$(2)$\mathrm{SO}_{3}^{2-}$(3) KI (4)$\mathrm{Cr}_{2} \mathrm{O}_{7}^{2-}$[JEE(Main)Online-2014] Download eSaral App for Video Lectures, Complete Revision, Study Material and much more... Sol. (1) Q. Consider the reaction$\mathrm{H}_{2} \mathrm{SO}_{3(\alpha q)}+\mathrm{Sn}_{(\alpha a)}^{4+}+\mathrm{H}_{2} \mathrm{O}_{(1)} \rightarrow \mathrm{Sn}_{(\mathrm{aq})}^{2+}+\mathrm{HSO}_{4(\mathrm{aq})}^{-}+3 \mathrm{H}_{(\mathrm{aq})}^{+}$Which of the following statements is correct? (1)$\mathrm{H}_{2} \mathrm{SO}_{3}$is the reducing agent because it undergoes oxidation (2)$\mathrm{H}_{2} \mathrm{SO}_{3}$is the reducing agent because it undergoes reduction (3)$\mathrm{Sn}^{4+}$is the reducing agent because it undergoes oxidation (4)$\mathrm{Sn}^{4+}$is the oxidizing agent because it undergoes oxidation [JEE(Main)Online-2014] Download eSaral App for Video Lectures, Complete Revision, Study Material and much more... Sol. (1) Q. The number and type of bonds in$\mathrm{C}_{2}^{2-}$ion in$\mathrm{CaC}_{2}$are : (1) Two$\sigma$bonds and one$\pi-$bond (2) Two$\sigma$bonds and two$\pi$– bonds (3) One$\sigma$bond and two$\pi$– bonds (4) One$\sigma$bond and one$\pi$– bond [JEE(Main)Online-2014] Download eSaral App for Video Lectures, Complete Revision, Study Material and much more... Sol. (3) Q. In the following sets of reactants which two sets best exhibit the amphoteric character of$\mathrm{Al}_{2} \mathrm{O}_{3} \cdot \mathrm{xH}_{2} \mathrm{O} ?$Set-1$: \mathrm{Al}_{2} \mathrm{O}_{3} \cdot \mathrm{XH}_{2} \mathrm{O}(\mathrm{s})$and$\mathrm{OH}^{-}(\mathrm{aq})$Set$-2: \mathrm{Al}_{2} \mathrm{O}_{3} \cdot \mathrm{XH}_{2} \mathrm{O}(\mathrm{s})$and$\mathrm{H}_{2} \mathrm{O}(\ell)$Set-3$: \mathrm{Al}_{2} \mathrm{O}_{3} \cdot \mathrm{xH}_{2} \mathrm{O}(\mathrm{s})$and$\mathrm{H}^{+}(\mathrm{aq})$Set-4:$\mathrm{Al}_{2} \mathrm{O}_{3} \cdot \mathrm{xH}_{2} \mathrm{O}(\mathrm{s})$and$\mathrm{NH}_{3}(\mathrm{aq})$(1) 1 and 2 (2) 2 and 4 (3) 1 and 3 (4) 3 and 4 [JEE(Main)Online-2014] Download eSaral App for Video Lectures, Complete Revision, Study Material and much more... Sol. (3) Q. Example of a three-dimensional silicate is : (1) Beryls (2) Zeolites (3) Feldspars (4) Ultramarines [JEE(Main)Online-2014] Download eSaral App for Video Lectures, Complete Revision, Study Material and much more... Sol. (1) Q. Which of the following compounds has a P-P bond :- (1)$\mathrm{H}_{4} \mathrm{P}_{2} \mathrm{O}_{5}$(2)$\left(\mathrm{HPO}_{3}\right)_{3}$(3)$\mathrm{H}_{4} \mathrm{P}_{2} \mathrm{O}_{7}$(4)$\mathrm{H}_{4} \mathrm{P}_{2} \mathrm{O}_{6}$[JEE(Main)Online-2015] Download eSaral App for Video Lectures, Complete Revision, Study Material and much more... Sol. (4) Q. Chlorine water on standing loses its colour and forms :- (1)$\mathrm{HCl}$and$\mathrm{HClO}_{2}$(2) HCl only (4) HCl and HOCl [JEE(Main)Online-2015] Download eSaral App for Video Lectures, Complete Revision, Study Material and much more... Sol. (4)$\mathrm{C} \ell_{2}+\mathrm{H}_{2} \mathrm{O} \rightarrow \mathrm{HCl}+\mathrm{HOCl}$Q. Which among the following is the most reactive ? (1)$\mathrm{I}_{2}$(2) Icl (3)$\mathrm{Cl}_{2}$( 4)$\mathrm{Br}_{2}$[JEE-Main2015] Download eSaral App for Video Lectures, Complete Revision, Study Material and much more... Sol. (2) Inter halogen compounds are more reactive than halogen except$\mathrm{F}_{2}$. Q. Which one has the highest boiling point ? (1) Kr (2) Xe (3) He (4) Ne [JEE-Main2015] Download eSaral App for Video Lectures, Complete Revision, Study Material and much more... Sol. (2) Boiling point order: He < Ne < Ar < Kr < Xe Q. From the following statements regarding$\mathrm{H}_{2} \mathrm{O}_{2}$, choose the incorrect statement : (1) It has to be stored in plastic or wax lined glass bottles in dark (2) It has to be kept away from dust (3) It can act only as an oxidizing agent (4) It decomposes on exposure to light [JEE-Main2015] Download eSaral App for Video Lectures, Complete Revision, Study Material and much more... Sol. (3)$\mathrm{H}_{2} \mathrm{O}_{2}$acts as aciding as well as reducing nature. Q. Which of the following are Lewis acids ? (1)$\mathrm{AlCl}_{3}$and$\mathrm{SiCl}_{4}$(2)$\mathrm{PH}_{3}$and$\mathrm{SiCl}_{4}$(3)$\mathrm{BCl}_{3}$and$\mathrm{AlCl}_{3}$(4)$\mathrm{PH}_{3}$and$\mathrm{BCl}_{3}$[JEE-Main2018] Download eSaral App for Video Lectures, Complete Revision, Study Material and much more... Sol. (3)$\mathrm{BCl}_{3} \& \mathrm{AlCl}_{3}$both have vacant p-orbital \& incomplete octet. So they act as Lewis acid. Q. The compound that does not produce nitrogen gas by the thermal decomposition is ( 1)$\left(\mathrm{NH}_{4}\right)_{2} \mathrm{Cr}_{2} \mathrm{O}_{7}$(2)$\mathrm{NH}_{4} \mathrm{NO}_{2}$(3)$\left(\mathrm{NH}_{4}\right)_{2} \mathrm{SO}_{4}$(4)$\mathrm{Ba}\left(\mathrm{N}_{3}\right)_{2}\$ [JEE-Main2018]

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Sol. (3)

• August 28, 2021 at 6:59 am

all three are three dimension species
beryls
zeolits
faldspare
ultramarines

0
• March 5, 2021 at 3:21 pm

Eska PDF kaha milega

7
• February 22, 2021 at 6:18 am

February 2021 syallabus it’s enough

45
• February 8, 2021 at 3:32 pm

good

2
• January 28, 2021 at 9:53 pm

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1
• December 29, 2020 at 1:29 pm

Thank you

4
• December 3, 2020 at 2:20 pm

Great

22
• November 14, 2020 at 1:02 pm

please provide 2019 and 2020 questions also

22
• November 17, 2020 at 10:18 am

1
• January 7, 2021 at 6:01 pm

Sahi boli

2
• July 24, 2021 at 8:48 pm

Ok

0
• November 8, 2020 at 10:03 pm

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60
• November 6, 2020 at 11:53 pm

Good enough

3
• September 26, 2020 at 6:04 am

excellent

0
• September 25, 2020 at 12:46 am

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0
• February 7, 2021 at 12:19 pm

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0
• September 21, 2020 at 4:50 pm

Photos are not available why?

1
• September 6, 2020 at 10:33 am

I didn’t get all the questions. 😔

0
• October 29, 2020 at 10:22 am

Please provide 2019 and 2020 questions also

1
• September 5, 2020 at 9:23 am

Best notes for preparation.

0
• September 4, 2020 at 6:04 pm

tQ SOOO much it is very helpful

0
• September 1, 2020 at 9:29 am

The question are very useful in jee aspirants

0
• October 23, 2020 at 3:04 pm

Good

0
• August 30, 2020 at 7:56 pm

These questions are helpful for neet as well as jee aspirants

1
• August 30, 2020 at 5:54 pm

we want recent year papers also ………………

1
• August 29, 2020 at 11:04 pm

0
• August 27, 2020 at 5:06 pm

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Once again thank you so much 🤗🤗

0
• August 26, 2020 at 10:59 pm

Nyc questions it was very useful……

0
• August 26, 2020 at 11:45 am

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0
• August 23, 2020 at 3:22 pm

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2
• August 20, 2020 at 7:37 pm

Very useful 💯tq

0
• August 14, 2020 at 8:57 pm

Thanku

0
• August 12, 2020 at 9:17 am

These que really helped me. Thank you

0
• August 9, 2020 at 8:04 pm

Good question based on jee

0
• August 5, 2020 at 3:21 pm

The questions are really excellent. These questions also describes to be careful with the particular topics.kindly post 2020 questions

0
• August 1, 2020 at 2:19 pm

Best platform

0
• July 20, 2020 at 1:18 am

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1
• July 12, 2020 at 8:43 am

It really helped me a lot esaral kindly update the questions to 2020.Thank you.

0
• June 22, 2020 at 9:36 am

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Thank you so much

0
• June 21, 2020 at 10:14 pm

Tq

0
• June 5, 2020 at 10:33 pm

Thanks a lot it was very helpful

0
• June 5, 2020 at 6:55 pm

Tssm

0
• June 4, 2020 at 1:35 pm

thank you

1
• May 30, 2020 at 9:09 am

Tqsm but what about 16 and 17 years there is no Q from p block in these years

1
• May 9, 2020 at 11:00 pm

Tqsm

1
• May 9, 2020 at 3:56 pm

Very nice thank you

1
• April 22, 2020 at 8:04 pm

Thank you so much

0
• April 9, 2020 at 12:28 am