Chemical Bonding and Molecular Structure — JEE Main PYQs

250 previous year questions on Chemical Bonding and Molecular Structure (Chemistry), newest first. Open any question for its complete step-by-step solution.

The type of hybridisation and number of lone pair(s) of electrons of Xe in $XeOF_{4}$ respectively are
JEE Main 2019View solution →
Two pi and half sigma bonds are present in
JEE Main 2019View solution →
The hydride that is NOT electron deficient is:
JEE Main 2019View solution →
Among the following species, the diamagnetic molecule is
JEE Main 2019View solution →
HF has highest boiling point among hydrogen halides, because it has:
JEE Main 2019View solution →
In which of the following processes, the bond order has increased and paramagnetic character has changed to diamagnetic?
JEE Main 2019View solution →
According to molecular orbital theory, which of the following is true with respect to $Li_{2}^{+}$ and $Li_{2}^{-}$ ?
JEE Main 2019View solution →
During the change of $O_{2}$ to $O_{2}^{-}$ , the incoming electron goes to the orbital:
JEE Main 2019View solution →
According to molecular orbital theory, which of the following will not be a viable molecule?
JEE Main 2018View solution →
Which of the following compounds contain(s) no covalent bond(s) ?
$KCl, PH_{3}, O_{2}, B_{2} H_{6}, H_{2} SO_{4}$
JEE Main 2018View solution →
Total number of lone pair of electrons in $I_{3}^{-}$ ion is :
JEE Main 2018View solution →
Which of the following are Lewis acids?
JEE Main 2018View solution →
Which of the following species is not paramagnetic ?
JEE Main 2017View solution →
The species in which the N atom is in a state of $s p$ hybridization is :
JEE Main 2016View solution →
The intermolecular interaction that is dependent on the inverse cube of distance between the molecule is:
JEE Main 2015View solution →
Which one has the highest boiling point?
JEE Main 2015View solution →
The correct statement for the molecule, CsI₃ is:
JEE Main 2014View solution →
For which of the following molecule significant μ ≠ 0?
(a)

(b)

(c)

(d)
JEE Main 2014View solution →
Stability of the species $Li_{2}, Li_{2}^{-}$ and $Li_{2}^{+}$ increases in the order of:
JEE Main 2013View solution →
In which of the following pairs of molecules/ions, both the species are not likely to exist?
JEE Main 2013View solution →
Which of the following molecules are expected to exhibit diamagnetic behaviour?
JEE Main 2013View solution →
The molecule having smallest bond angle is :
JEE Main 2012View solution →
In which of the following pairs the two species are not isostructural ?
JEE Main 2012View solution →
Among the following the maximum covalent character is shown by the compound :
JEE Main 2011View solution →
The hybridization of orbitals of N atom in $NO_{3}^{-}, NO_{2}^{+}$ and $NH_{4}^{+}$ are respectively :
JEE Main 2011View solution →
The structure of $IF_{7}$ is :
JEE Main 2011View solution →
Using MO theory predict which of the following species has the shortest bond length ?
JEE Main 2009View solution →
The bond dissociation energy of $B - F$ in $BF_{3}$ is $646 kJ mol^{- 1}$ whereas that of $C - F$ in $CF_{4}$ is 515 kJ $mol^{- 1}$ . The correct reason for higher B-F bond dissociation energy …
JEE Main 2009View solution →
Which one of the following pairs of species have the same bond order?
JEE Main 2008View solution →
In which of the following ionization processes, the bond order has increased and the magnetic behaviour has changed?
JEE Main 2007View solution →
Which of the following hydrogen bonds is the strongest?
JEE Main 2007View solution →
Which of the following species exhibits the diamagnetic behaviour?
JEE Main 2007View solution →
The charge/size ratio of a cation determines its polarizing power. Which one of the following sequences represents the increasing order of the polarizinig order of the polarizing power of the cationic species, …
JEE Main 2007View solution →
Which of the following molecules/ions does not contain unpaired electrons?
JEE Main 2006View solution →
Among the following mixtures, dipole-dipole as the major interaction, is present in
JEE Main 2006View solution →
A metal, $M$ forms chlorides in its +2 and +4 oxidation states. Which of the following statements about these chlorides is correct?
JEE Main 2006View solution →
In which of the following molecules/ions are all the bonds not equal?
JEE Main 2006View solution →
The decreasing values of bond angles from $NH_{3} (10 6^{\circ})$ to $SbH_{3} (10 1^{\circ})$ down group-15 of the periodic table is due to
JEE Main 2006View solution →
Which one of the following species is diamagnetic in nature?
JEE Main 2005View solution →
Lattice energy of an ionic compounds depends upon
JEE Main 2005View solution →
Based on lattice energy and other considerations which one of the following alkali metal chlorides is expected to have the highest melting point.
JEE Main 2005View solution →
The molecular shapes of $SF_{4}, CF_{4}$ and $XeF_{4}$ are
JEE Main 2005View solution →
The structure of diborane ( $B_{2} H_{6}$ ) contains
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The correct order of bond angles (smallest first) in $H_{2} S$ , $NH_{3}$ , $BF_{3}$ and $SiH_{4}$ is
JEE Main 2004View solution →
The bond order in NO is 2.5 while that in $NO^{+}$ is 3. Which of the following statements is true for these two species?
JEE Main 2004View solution →
The states of hybridization of boron and oxygen atoms in boric acid ( $H_{3} BO_{3}$ ) are respectively
JEE Main 2004View solution →
Which one of the following has the regular tetrahedral structure?
JEE Main 2004View solution →
The maximum number of $9 0^{\circ}$ angles between bond pair of electrons is observed in
JEE Main 2004View solution →
Which one of the following has the minimum boiling point?
JEE Main 2004View solution →
Which one the following does not have $sp^{2}$ hybridized carbon?
JEE Main 2004View solution →