Periodic Table – 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. The set representing the correct order of ionic radius is ? (1) $\mathrm{Li}^{+}>\mathrm{Na}^{+}>\mathrm{Mg}^{2+}>\mathrm{Be}^{2+}$ (2) $\mathrm{Mg}^{2+}>\mathrm{Be}^{2+}>\mathrm{Li}^{+}>\mathrm{Na}^{+}$ (3) $\mathrm{Li}^{+}>\mathrm{Be}^{2+}>\mathrm{Na}^{+}>\mathrm{Mg}^{2+}$ (4) $\mathrm{Na}^{+}>\mathrm{Li}^{+}>\mathrm{Mg}^{2+}>\mathrm{Be}^{2+}$ [AIEEE 2009]

Download eSaral App for Video Lectures, Complete Revision, Study Material and much more...

Sol. (4)

Q. The correct order of electron gain enthalpy with negative sign of F, Cl, Br and I, having atomic number 9, 17, 35 and 53 respectively, is ? (1) I > Br > Cl > F (2) F > Cl > Br > I (3) Cl > F > Br > I (4) Br > Cl > I > F [AIEEE 2011]

Download eSaral App for Video Lectures, Complete Revision, Study Material and much more...

Sol. (3)

Q. The increasing order of the ionic radii of the given isoelectronic species is ? (1) $\mathrm{K}^{+}, \mathrm{S}^{2-}, \mathrm{Ca}^{2+}, \mathrm{Cl}^{-}$ (2) $\mathrm{Cl}^{-}, \mathrm{Ca}^{2+}, \mathrm{K}^{+}, \mathrm{S}^{2-}$ (3) $\mathrm{S}^{2-}, \mathrm{Cl}^{-}, \mathrm{Ca}^{2+}, \mathrm{K}^{+}$ (4) $\mathrm{Ca}^{2+}, \mathrm{K}^{+}, \mathrm{Cl}^{-}, \mathrm{S}^{2-}$ [AIEEE 2012]

Download eSaral App for Video Lectures, Complete Revision, Study Material and much more...

Sol. (4)

Q. Which of the following represents the correct order of increasing first ionization enthalpy for Ca, Ba, S, Se and Ar ? (1) Ca < S < Ba < Se < Ar (2) S < Se < Ca < Ba < Ar (3) Ba < Ca < Se < S < Ar (4) Ca < Ba S < Se < Ar [JEE-Main 2013]

Download eSaral App for Video Lectures, Complete Revision, Study Material and much more...

Sol. (3)

Q. The first ionisation potential of Na is 5.1 eV. The value of electron gain enthalpy of $\mathrm{Na}^{+}$ will be? (1) – 2.55 eV (2) – 5.1 eV (3) – 10.2 eV (4) + 2.55 eV [JEE-Main 2013]

Download eSaral App for Video Lectures, Complete Revision, Study Material and much more...

Sol. (4)

Q. Electron gain enthalpy with negative sign of fluorine is less than that of chlorine due to: (1) Smaller size of chlorine atom (2) Bigger size of 2p orbital of fluorine (3) High ionization enthalpy ol fluorine (4) Smaller size of fluorine atom [JEE-MAIN 2013 (OnLine)]

Download eSaral App for Video Lectures, Complete Revision, Study Material and much more...

Sol. (4)

Q. The order of increasing sizes of atomic radii among the elements O, S, Se and As is ? (1) As < S < O < Se (2) O < S < As < Se (3) Se < S < As < O (4) O < S < Se < As [JEE-MAIN 2013 (OnLine)]

Download eSaral App for Video Lectures, Complete Revision, Study Material and much more...

Sol. (4)

Q. Which is the correct order of second ionization potential of C, N, O and F in the following? (1) O > F > N > C (2) O > N > F > C (3) C > N > O > F (4) F > O > N > C [JEE-MAIN 2013 (OnLine)]

Download eSaral App for Video Lectures, Complete Revision, Study Material and much more...

Sol. (1)

Q. Which of the following series correctly represents relations between the elements from X to Y ? [JEE-MAIN 2014 (OnLine)]

Download eSaral App for Video Lectures, Complete Revision, Study Material and much more...

Sol. (3)

Q. Which of the following atoms has the highest first ionization energy ? (1) Sc (2) Rb (3) Na (4) K [JEE-MAIN 2016]

Download eSaral App for Video Lectures, Complete Revision, Study Material and much more...

Sol. (1) Due to poor shielding of d-electrons in Sc, $Z_{\mathrm{eff}}$ of Sc becomes more so that ionisation energy of Sc is more than Na, K and Rb.

Q. The group having isoelectronic species is :- (1) $\mathrm{O}^{2-}, \mathrm{F}^{-}, \mathrm{Na}^{+}, \mathrm{Mg}^{2+}$ (2) $\mathrm{O}^{-}, \mathrm{F}^{-}, \mathrm{Na}, \mathrm{Mg}^{+}$ (3) $\mathrm{O}^{2-}, \mathrm{F}^{-}, \mathrm{Na}, \mathrm{Mg}^{2+}$ (4) $\mathrm{O}^{-}, \mathrm{F}^{-}, \mathrm{Na}^{+}, \mathrm{Mg}^{2+}$ [JEE-MAIN 2017]

Download eSaral App for Video Lectures, Complete Revision, Study Material and much more...

Sol. (1)

• February 23, 2021 at 10:34 pm

Thanks

1
• February 23, 2021 at 12:04 pm

thank you so much

0
• January 22, 2021 at 3:44 pm

Good for preparation

0
• December 19, 2020 at 5:20 pm

very nice

12
• December 13, 2020 at 6:50 pm

Good questions….but more high level based questions should be uploaded for iit jee advanced level preparation.

47
• February 28, 2021 at 9:42 am

YA WHY NOTY

0
• November 21, 2020 at 9:21 am

nice thanks saral

7
• November 18, 2020 at 7:54 pm

please give me more question to solve for iit preperation

1
• November 19, 2020 at 10:50 am

For Complete study material, Video Lectures and Mind Map Download eSaral APP: https://esaral.com/app .

1
• November 14, 2020 at 8:21 pm

Yep

0
• November 2, 2020 at 9:21 pm

nice

1