Chemical Bonding and Molecular Structure: MCQs | Question – Paper 1 19

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Topic: Chemical Bonding and Molecular Structure, Test No.: 01, Total MCQs: 15

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Question 1
In allene (C3H4), the type(s) of hybridisation of the carbon atoms is (are) [IIT JEE 2012]
A
sp and sp3
B
sp and sp2
C
Only sp2
D
sp2 and sp3
Question 2
The sp3d2 hybridization of central atom of a molecule would lead to [West Bengal JEE 2011]
A
square planar geometry
B
Tetrahedral geometry
C
Trigonal bipyramidal geometry
D
Octahedral geometry
Question 3
Hybridization of C2 and C3 of

H3C – CH = C = CH – CH3 are [West Bengal JEE 2011]

A
Sp, Sp3
B
Sp2, Sp
C
Sp2, Sp2
D
Sp, Sp
Question 4
Which one of the following is paramagnetic? [West Bengal JEE 2011]
A
N2
B
NO
C
CO
D
O3
Question 5
Among the following the maximum covalent character is shown by the compound [AIEEE 2011]
A
MgCl2
B
FeCl2
C
SnCl2
D
AlCl3
Question 6
The hybridization of orbitals of N atom in NO3–, NO2+ and NH4+ are respectively [AIEEE 2011]
A
sp2, sp3, sp
B
sp, sp2, sp3
C
sp2, sp, sp3
D
sp, sp3, sp2
Question 7
The number of types of bonds between two carbon atoms in calcium carbide is [AIEEE 2011]
A
Two sigma, two pi
B
One sigma, two pi
C
One sigma, one pi
D
Two sigma, one pi
Question 8
The structure of IF7 is [AIEEE 2011]
A
Pentagonal bipyramid
B
Square pyramid
C
Trigonal bipyramid
D
Octahedral
Question 9
Which of the following has maximum number of lone pairs associated with Xe? [AIEEE 2011]
A
XeF2
B
XeO3
C
XeF4
D
XeF6
Question 10
Peroxide ion ______.

a) is diamagnetic.

b) has five completely filled antibonding molecular orbitals.

c) is isoelectronic with neon.

d) has bond order one.

Which one of these is correct? [Karnataka CET 2010]

A
a), b) and d)
B
d) and c)
C
a) and d)
D
a), b) and c)
Question 11
Malleability and ductility of metals can be accounted due to [Karnataka CET 2008]
A
the presence of electrostatic force
B
the crystalline structure in metal
C
the capacity of layers of metal ions to slide over the other
D
the interaction of electrons with metal ions in the lattice
Question 12
The maximum number of hydrogen bonds that a molecule of water can have is [Karnataka CET 2008]
A
1
B
2
C
3
D
4
Question 13
During the formation of a chemical bond [Karnataka CET 2007]
A
energy decreases
B
energy increases
C
energy of the system does not change
D
electron-electron repulsion becomes more than the nucleus-electron attraction
Question 14
Which of the following species contains three bond pairs and one lone pair around the central atom? [CBSE AIPMT 2012]
A
B
PCl3
C
H2O
D
BF3
Question 15
Which one of the following pairs is isostructural (i.e. having the same shape and hybridization)? [CBSE AIPMT 2012]
A
[NF3 and BF3]
B
C
[BCl3 and BrCl3]4
D
[NH3 and
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19 thoughts on “Chemical Bonding and Molecular Structure: MCQs | Question – Paper 1”

  • Reply ↓
    utkarsh

    I THINK THE ANS TO QUESTION 1 IS WRONG. CAN YOU PLEASE CHECK AND INFORM ME?

    • Reply ↓
      kartik yadav

      its correct bro consider reading it properly.

    • Reply ↓
      LOHITH HARISH

      1-2(*V+G+A-C) APPLY THIS AND FIND THE HYBRIDISATION

    • Reply ↓
      Niyat Chaudhary

      15 que me 2nd ans hi aayega naa…..bcz boron fluorine k sath cocrdinate bond bnaega so hbd change hoke same as nitrogen ho jaegi

  • Reply ↓
    ali

    in question 13. i think during the formation of bond an activated complex formed which has higher energy than reactent

    • Reply ↓
      Niyat Chaudhary

      aise to infinite transition states hoti h but apn ko sirf product se mtlb hota h…. wo jada stable to uski enrgy km…energy is inversly proportional to stability…

  • Reply ↓
    Santosh kumar jena

    I think the answer of question-2 is both 1 and 4

  • Reply ↓
    Sagar Upadhyaya

    que no 2 has two possible answers 1 n 4.. isn`t it?

    • Reply ↓
      Shagun

      no it has only one answer that is octahedral as it has asked geometry not shape, in chemistry according to lone pairs in a particular hybridization the geometry is same but shape can vary.

  • Reply ↓
    sana

    how can water molecule form 4 hydrogen bonds????? 🤔🤔🤔🤔🤔 cat understand dis