Chemical Bonding & Molecular Structure PYQs - Last 10 Years
JEE Main / Chemistry / Inorganic Chemistry / 229 recent questions
ChemistryInorganic Chemistry2017-2026
Practice 229 JEE Main Chemistry questions from Chemical Bonding & Molecular Structure. Use the year-wise and type-wise breakdown to prioritize recent PYQs, then continue into the question list below.
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2017-2026
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Last 10 Years Chemical Bonding & Molecular Structure Questions
Showing 50 of 229 filtered questions.
1Chemical Bonding And Molecular Structure
Bromine trifluoride autoionizes to form $\mathrm{BrF}_2^{\oplus}$ and $\mathrm{BrF}_4^{\ominus}$. The shapes of the cation and anion are respectively $\_\_\_\_$ and $\_\_\_\_$ .
MCQ+4 / -12026
2Chemical Bonding And Molecular Structure
The pairs among
$\mathrm{A}=\left[\mathrm{SO}_3^{2-}, \mathrm{CO}_3^{2-}\right], \mathrm{B}=\left[\mathrm{O}_2^{2-}, \mathrm{F}_2\right], \mathrm{C}=\left[\mathrm{CN}^{-}, \mathrm{CO}\right], \mathrm{D}=\left[\mathrm{NH}_3, \mathrm{H}_3 \ma...
$\mathrm{A}=\left[\mathrm{SO}_3^{2-}, \mathrm{CO}_3^{2-}\right], \mathrm{B}=\left[\mathrm{O}_2^{2-}, \mathrm{F}_2\right], \mathrm{C}=\left[\mathrm{CN}^{-}, \mathrm{CO}\right], \mathrm{D}=\left[\mathrm{NH}_3, \mathrm{H}_3 \ma...
MCQ+4 / -12026
3Chemical Bonding And Molecular Structure
Given below are two statements :
Statement I : $\mathrm{F}_2 \mathrm{O}<\mathrm{H}_2 \mathrm{O}<\mathrm{Cl}_2 \mathrm{O}$ is the correct trend in terms of bond angle.
Statement II : $\mathrm{SiF}_4, \mathrm{SnF}_4$ and $\mathrm{PbF}_4$ are ...
Statement I : $\mathrm{F}_2 \mathrm{O}<\mathrm{H}_2 \mathrm{O}<\mathrm{Cl}_2 \mathrm{O}$ is the correct trend in terms of bond angle.
Statement II : $\mathrm{SiF}_4, \mathrm{SnF}_4$ and $\mathrm{PbF}_4$ are ...
MCQ+4 / -12026
4Chemical Bonding And Molecular Structure
Given below are two statements :
Statement I : The number of compounds among $\mathrm{SO}_2, \mathrm{SO}_3, \mathrm{SF}_4, \mathrm{SF}_6$ and $\mathrm{H}_2 \mathrm{~S}$ in which sulphur does not obey the Octet rule is 3 .
Statement II : Amo...
Statement I : The number of compounds among $\mathrm{SO}_2, \mathrm{SO}_3, \mathrm{SF}_4, \mathrm{SF}_6$ and $\mathrm{H}_2 \mathrm{~S}$ in which sulphur does not obey the Octet rule is 3 .
Statement II : Amo...
MCQ+4 / -12026
5Chemical Bonding And Molecular Structure
Consider the following species:
\(\mathrm{BrF}_5, \mathrm{XeF}_5^{-}, \mathrm{BF}_4^{-}, \mathrm{ICl}_4^{-}, \mathrm{XeF}_4, \mathrm{SF}_4, \mathrm{NH}_4^{+}, \mathrm{ClF}_3, \mathrm{XeF}_2, \mathrm{ICl}_2^{-}\)
Number of species having $...
\(\mathrm{BrF}_5, \mathrm{XeF}_5^{-}, \mathrm{BF}_4^{-}, \mathrm{ICl}_4^{-}, \mathrm{XeF}_4, \mathrm{SF}_4, \mathrm{NH}_4^{+}, \mathrm{ClF}_3, \mathrm{XeF}_2, \mathrm{ICl}_2^{-}\)
Number of species having $...
INTEGER+4 / -12026
6Chemical Bonding And Molecular Structure
The covalent radii of atoms $A$ and $B$ are $r_A$ and $r_B$, respectively. The covalent bond length and total length of AB molecule are respectively
MCQ+4 / -12026
7Chemical Bonding And Molecular Structure
According to Lewis theory, the total number of $\sigma$ bond-pairs and lone pair of electrons around the central atom of $\mathrm{XeO}_6{ }^{4-}$ ion is $\_\_\_\_$ .
INTEGER+4 / -12026
8Chemical Bonding And Molecular Structure
Which of the following pictorial diagram most correctly represents the $\pi^*$ ( $\pi$ antibonding) molecular orbital between two atoms if the internuclear axis is taken to be in the $z$-direction $(\xrightarrow{z \text {-axis }})$ ?
MCQ+4 / -12026
9Chemical Bonding And Molecular Structure
Given below are two statements :Statement (I): The correct sequence of bond lengths in the following species is :$\ce{O2^{+}} < \ce{O2} < \ce{O2^{-}} < \ce{O2^{2-}}$Statement (II): The correct sequence of number of unpaired electrons in the...
MCQ+4 / -12026
10Chemical Bonding And Molecular Structure
SF$_4$ is isostructural with :A. BrF$_4^\ominus$B. CH$_4$C. IF$_4^{\oplus}$D. XeF$_4$E. XeO$_2$F$_2$Choose the correct answer from the options given below :
MCQ+4 / -12026
11Chemical Bonding And Molecular Structure
Given below are two statements :
Statement I : The number of species among $\mathrm{BF}_4^{-}, \mathrm{SiF}_4, \mathrm{XeF}_4$ and $\mathrm{SF}_4$, that have unequal $\mathrm{E}-\mathrm{F}$ bond lengths is two. Here, E is the central atom.
...
Statement I : The number of species among $\mathrm{BF}_4^{-}, \mathrm{SiF}_4, \mathrm{XeF}_4$ and $\mathrm{SF}_4$, that have unequal $\mathrm{E}-\mathrm{F}$ bond lengths is two. Here, E is the central atom.
...
MCQ+4 / -12026
12Chemical Bonding And Molecular Structure
Match List - I with List - II according to shape.
List – I
List – II
A. XeO3
B. XeF2
C. XeO2F2
D. XeOF4
I. BrF5
II. NH3
III. [I3]−
IV. ...
List – I
List – II
A. XeO3
B. XeF2
C. XeO2F2
D. XeOF4
I. BrF5
II. NH3
III. [I3]−
IV. ...
MCQ+4 / -12026
13Chemical Bonding And Molecular Structure
Among the following, the CORRECT combinations are
A. $\mathrm{IF}_3 \rightarrow \mathrm{~T}$-shaped ( $\mathrm{sp}^3 \mathrm{~d}$ )
B. $\mathrm{IF}_5 \rightarrow$ Square pyramidal $\left(\mathrm{sp}^3 \mathrm{~d}^2\right)$
C. $\mathrm{IF}_7...
A. $\mathrm{IF}_3 \rightarrow \mathrm{~T}$-shaped ( $\mathrm{sp}^3 \mathrm{~d}$ )
B. $\mathrm{IF}_5 \rightarrow$ Square pyramidal $\left(\mathrm{sp}^3 \mathrm{~d}^2\right)$
C. $\mathrm{IF}_7...
MCQ+4 / -12026
14Chemical Bonding And Molecular Structure
Given below are statements about some molecules/ions.
Identify the CORRECT statements.
A. The dipole moment value of $\mathrm{NF}_3$ is higher than that of $\mathrm{NH}_3$.
B. The dipole moment value of $\mathrm{BeH}_2$ is zero.
C. The bond...
Identify the CORRECT statements.
A. The dipole moment value of $\mathrm{NF}_3$ is higher than that of $\mathrm{NH}_3$.
B. The dipole moment value of $\mathrm{BeH}_2$ is zero.
C. The bond...
MCQ+4 / -12026
15Chemical Bonding And Molecular Structure
Pair of species among the following having same bond order as well as paramagnetic character will be-
MCQ+4 / -12026
16Chemical Bonding And Molecular Structure
Identify the molecule $(X)$ with maximum number of lone pairs of electrons (obtained using Lewis dot structure) among $\mathrm{HNO}_3, \mathrm{H}_2 \mathrm{SO}_4, \mathrm{NF}_3$ and $\mathrm{O}_3$. Choose the correct bond angle made by the ...
MCQ+4 / -12026
17Chemical Bonding And Molecular Structure
Which statements are NOT TRUE about $\mathrm{XeO}_2 \mathrm{~F}_2$?
A. It has a see-saw shape.
B. Xe has 5 electron pairs in its valence shell in $\mathrm{XeO}_2 \mathrm{~F}_2$.
C. The $\mathrm{O}-\mathrm{Xe}-\mathrm{O}$ bond angle is close...
A. It has a see-saw shape.
B. Xe has 5 electron pairs in its valence shell in $\mathrm{XeO}_2 \mathrm{~F}_2$.
C. The $\mathrm{O}-\mathrm{Xe}-\mathrm{O}$ bond angle is close...
MCQ+4 / -12026
18Chemical Bonding And Molecular Structure
Two p-block elements X and Y form fluorides of the type $\mathrm{EF}_3$. The fluoride compound $\mathrm{XF}_3$ is a Lewis acid and $\mathrm{YF}_3$ is a Lewis base. The hybridizations of the central atoms of $\mathrm{XF}_3$ and $\mathrm{YF}_...
MCQ+4 / -12026
19Chemical Bonding And Molecular Structure
The formal charges on the atoms marked as (1) to (4) in the Lewis representation of $\mathrm{HNO}_3$ molecule respectively are
MCQ+4 / -12026
20Chemical Bonding And Molecular Structure
Among $\mathrm{H}_2 \mathrm{~S}, \mathrm{H}_2 \mathrm{O}, \mathrm{NF}_3, \mathrm{NH}_3$ and $\mathrm{CHCl}_3$, identify the molecule $(\mathrm{X})$ with lowest dipole moment value. The number of lone pairs of electrons present on the centra...
MCQ+4 / -12026
21Chemical Bonding And Molecular Structure
Given below are two statements :
Statement I :
The number of species among $\mathrm{SF}_4, \mathrm{NH}_4^{+},\left[\mathrm{NiCl}_4\right]^{2-}, \mathrm{XeF}_4,\left[\mathrm{PtCl}_4\right]^{2-}, \mathrm{SeF}_4$ and $\left[\mathrm{Ni}(\mathrm...
Statement I :
The number of species among $\mathrm{SF}_4, \mathrm{NH}_4^{+},\left[\mathrm{NiCl}_4\right]^{2-}, \mathrm{XeF}_4,\left[\mathrm{PtCl}_4\right]^{2-}, \mathrm{SeF}_4$ and $\left[\mathrm{Ni}(\mathrm...
MCQ+4 / -12026
22Chemical Bonding And Molecular Structure
Given below are two statements : Statement I : The correct order in terms of bond dissociation enthalpy is Cl2 > Br2 > F2 > I2. Statement II : The correct trend in the covalent character of the metal halides is [SnCl4 > SnCl2], [PbCl4 > PbC...
MCQ+4 / -12026
23Chemical Bonding And Molecular Structure
The correct increasing order of C–H(A), C–O(B), C=O(C) and C≡N(D) bonds in terms of covalent bond length is :
MCQ+4 / -12026
24Chemical Bonding And Molecular Structure
Match the List I with List II.
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MCQ+4 / -12025
25Chemical Bonding And Molecular Structure
Given below are two statements :Statement (I) : is more polar than Statement (II) : Boiling point of is lower than but it is more polar than .In the light of the above statements, choose the most appropriate answer from the options given...
MCQ+4 / -12025
26Chemical Bonding And Molecular Structure
In SO2, NO2$-$ and N3$-$, the hybridizations at the central atom are respectively :
MCQ+4 / -12025
27Chemical Bonding And Molecular Structure
Which of the following molecule(s) show/s paramagnetic behavior?
A. $\mathrm{O}_2$
B. $\mathrm{N}_2$
C. $\mathrm{F}_2$
D. $\mathrm{S}_2$
E. $\mathrm{Cl}_2$
Choose the correct answer from the options given below:
A. $\mathrm{O}_2$
B. $\mathrm{N}_2$
C. $\mathrm{F}_2$
D. $\mathrm{S}_2$
E. $\mathrm{Cl}_2$
Choose the correct answer from the options given below:
MCQ+4 / -12025
28Chemical Bonding And Molecular Structure
Given below are two statements.
In the light of the above statements, choose the correct answer from the options given below:
In the light of the above statements, choose the correct answer from the options given below:
MCQ+4 / -12025
29Chemical Bonding And Molecular Structure
Given below are two statements:Statement (I): For , all three possible structures may be drawn as follows.
Statement (II): Structure III is most stable, as the orbitals having the lone pairs are axial, where the lp – bp repulsion is minimum...
Statement (II): Structure III is most stable, as the orbitals having the lone pairs are axial, where the lp – bp repulsion is minimum...
MCQ+4 / -12025
30Chemical Bonding And Molecular Structure
Given below are two statements:
Statement I : Wet cotton clothes made of cellulose based carbohydrate takes comparatively longer time to get dried than wet nylon polymer based clothes.
Statement II : Intermolecular hydrogen bonding with wat...
Statement I : Wet cotton clothes made of cellulose based carbohydrate takes comparatively longer time to get dried than wet nylon polymer based clothes.
Statement II : Intermolecular hydrogen bonding with wat...
MCQ+4 / -12025
31Chemical Bonding And Molecular Structure
A molecule with the formula $\mathrm{AX}_4 \mathrm{Y}$ has all it's elements from p-block. Element A is rarest, monoatomic, non-radioactive from its group and has the lowest ionization enthalpy value among $\mathrm{A}, \mathrm{X}$ and Y . E...
MCQ+4 / -12025
32Chemical Bonding And Molecular Structure
Consider the following molecules:
The correct order of rate of hydrolysis is :
The correct order of rate of hydrolysis is :
MCQ+4 / -12025
33Chemical Bonding And Molecular Structure
Among $\mathrm{SO}_2, \mathrm{NF}_3, \mathrm{NH}_3, \mathrm{XeF}_2, \mathrm{ClF}_3$ and $\mathrm{SF}_4$, the hybridization of the molecule with nonzero dipole moment and highest number of lone-pairs of electrons on the central atom is
MCQ+4 / -12025
34Chemical Bonding And Molecular Structure
Which among the following molecules is (a) involved in $\mathrm{sp}^3 \mathrm{~d}$ hybridization, (b) has different bond lengths and (c) has lone pair of electrons on the central atom?
MCQ+4 / -12025
35Chemical Bonding And Molecular Structure
Total number of non-bonded electrons present in NO2$-$ ion based on Lewis theory is ______.
INTEGER+4 / -12025
36Chemical Bonding And Molecular Structure
The molecules having square pyramidal geometry are
MCQ+4 / -12025
37Chemical Bonding And Molecular Structure
Consider ' n ' is the number of lone pair of electrons present in the equatorial position of the most stable structure of $\mathrm{ClF}_3$. The ions from the following with ' n ' number of unpaired electrons are
A. $\mathrm{V}^{3+}$
B. $\ma...
A. $\mathrm{V}^{3+}$
B. $\ma...
MCQ+4 / -12025
38Chemical Bonding And Molecular Structure
Which of the following linear combination of atomic orbitals will lead to formation of molecular orbitals in homonuclear diatomic molecules [internuclear axis in $z$-direction] ?
A. $2 \mathrm{p}_{\mathrm{z}}$ and $2 \mathrm{p}_{\mathrm{x}}...
A. $2 \mathrm{p}_{\mathrm{z}}$ and $2 \mathrm{p}_{\mathrm{x}}...
MCQ+4 / -12025
39Chemical Bonding And Molecular Structure
Which of the following statement is true with respect to $\mathrm{H}_2 \mathrm{O}, \mathrm{NH}_3$ and $\mathrm{CH}_4$ ?
A. The central atoms of all the molecules are $\mathrm{sp}^3$ hybridized.
B. The $\mathrm{H}-\mathrm{O}-\mathrm{H}, \mat...
A. The central atoms of all the molecules are $\mathrm{sp}^3$ hybridized.
B. The $\mathrm{H}-\mathrm{O}-\mathrm{H}, \mat...
MCQ+4 / -12025
40Chemical Bonding And Molecular Structure
Given below are two statements :
Statement (I) : Experimentally determined oxygen-oxygen bond lengths in the $\mathrm{O}_3$ are found to be same and the bond length is greater than that of a $\mathrm{O}=\mathrm{O}$ (double bond) but less th...
Statement (I) : Experimentally determined oxygen-oxygen bond lengths in the $\mathrm{O}_3$ are found to be same and the bond length is greater than that of a $\mathrm{O}=\mathrm{O}$ (double bond) but less th...
MCQ+4 / -12025
41Chemical Bonding And Molecular Structure
Match the List - I with List - II
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MCQ+4 / -12025
42Chemical Bonding And Molecular Structure
The number of molecules/ions that show linear geometry among the following is __________.
$\mathrm{SO}_2, \mathrm{BeCl}_2, \mathrm{CO}_2, \mathrm{~N}_3^{-}, \mathrm{NO}_2, \mathrm{~F}_2 \mathrm{O}, \mathrm{XeF}_2, \mathrm{NO}_2^{+}, \mathrm...
$\mathrm{SO}_2, \mathrm{BeCl}_2, \mathrm{CO}_2, \mathrm{~N}_3^{-}, \mathrm{NO}_2, \mathrm{~F}_2 \mathrm{O}, \mathrm{XeF}_2, \mathrm{NO}_2^{+}, \mathrm...
INTEGER+4 / -12025
43Chemical Bonding And Molecular Structure
Arrange the following compounds in increasing order of their dipole moment :
$\mathrm{HBr}, \mathrm{H}_2 \mathrm{~S}, \mathrm{NF}_3$ and $\mathrm{CHCl}_3$
$\mathrm{HBr}, \mathrm{H}_2 \mathrm{~S}, \mathrm{NF}_3$ and $\mathrm{CHCl}_3$
MCQ+4 / -12025
44Chemical Bonding And Molecular Structure
The total number of species from the following in which one unpaired electron is present, is _______.
$$\mathrm{N}_2, \mathrm{O}_2, \mathrm{C}_2^{-}, \mathrm{O}_2^{-}, \mathrm{O}_2^{2-}, \mathrm{H}_2^{+}, \mathrm{CN}^{-}, \mathrm{He}_2^{+}$...
$$\mathrm{N}_2, \mathrm{O}_2, \mathrm{C}_2^{-}, \mathrm{O}_2^{-}, \mathrm{O}_2^{2-}, \mathrm{H}_2^{+}, \mathrm{CN}^{-}, \mathrm{He}_2^{+}$...
INTEGER+4 / -12024
45Chemical Bonding And Molecular Structure
In which one of the following pairs the central atoms exhibit \(\mathrm{sp}^2\) hybridization ?
MCQ+4 / -12024
46Chemical Bonding And Molecular Structure
Total number of electrons present in \(\left(\pi^*\right)\) molecular orbitals of \(\mathrm{O}_2, \mathrm{O}_2^{+}\) and \(\mathrm{O}_2^{-}\) is ________.
INTEGER+4 / -12024
47Chemical Bonding And Molecular Structure
The correct increasing order for bond angles among \(\mathrm{BF}_3, \mathrm{PF}_3\) and \(\mathrm{ClF}_3\) is :
MCQ+4 / -12024
48Chemical Bonding And Molecular Structure
Number of molecules from the following which are exceptions to octet rule is _________.
$$\mathrm{CO}_2, \mathrm{NO}_2, \mathrm{H}_2 \mathrm{SO}_4, \mathrm{BF}_3, \mathrm{CH}_4, \mathrm{SiF}_4, \mathrm{ClO}_2, \mathrm{PCl}_5, \mathrm{BeF}_2...
$$\mathrm{CO}_2, \mathrm{NO}_2, \mathrm{H}_2 \mathrm{SO}_4, \mathrm{BF}_3, \mathrm{CH}_4, \mathrm{SiF}_4, \mathrm{ClO}_2, \mathrm{PCl}_5, \mathrm{BeF}_2...
INTEGER+4 / -12024
49Chemical Bonding And Molecular Structure
Match List I with List II
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MCQ+4 / -12024
50Chemical Bonding And Molecular Structure
Number of molecules having bond order 2 from the following molecules is _________. \(\mathrm{C}_2, \mathrm{O}_2, \mathrm{Be}_2, \mathrm{Li}_2, \mathrm{Ne}_2, \mathrm{~N}_2, \mathrm{He}_2\)
INTEGER+4 / -12024