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Chemical Bonding - Grade 10 MCQ


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30 Questions MCQ Test Chemistry for Grade 10 - Chemical Bonding

Chemical Bonding for Grade 10 2024 is part of Chemistry for Grade 10 preparation. The Chemical Bonding questions and answers have been prepared according to the Grade 10 exam syllabus.The Chemical Bonding MCQs are made for Grade 10 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Chemical Bonding below.
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Chemical Bonding - Question 1

In OF2, number of bond pairs and lone pairs of electrons are respectively:    

Detailed Solution for Chemical Bonding - Question 1

Chemical Bonding - Question 2

A molecule which cannot exist theoretically is:    

Detailed Solution for Chemical Bonding - Question 2

Oxygen cannot expand its octet due to absence of d-orbitals in its valence shell.

Chemical Bonding - Question 3

Which are true statements among the following?  

 (I)    PH5 and BiCI5 does not exist
(II)    pπ-dπ bonds are present in SO2
(III)    Electrons travel with speed of light            
(IV)    SeF4 and CH4 has same shape    
(V)  I+3  has bent geometry    

Detailed Solution for Chemical Bonding - Question 3

These are facts

Chemical Bonding - Question 4

PF3 molecule is:    

Detailed Solution for Chemical Bonding - Question 4

P atom has sp3-hybridization with one position occupied by lone pair of electron.

Chemical Bonding - Question 5

Increasing order (lower first) of size of the various hybridised orbitals is:    

Detailed Solution for Chemical Bonding - Question 5

As the s-character increases in hybrid orbitals, bond energy increases, size of the hybridized orbital decreases.                 
s-characters in sp,sp2 and sp3 are 1/2, 1/3,1/4 respectively.

Chemical Bonding - Question 6

Which of the following statement regarding carbon monoxide is correct?    

Detailed Solution for Chemical Bonding - Question 6

Chemical Bonding - Question 7

Which of the following is false?        

Detailed Solution for Chemical Bonding - Question 7

[NiCl4]2- has tetrahefral shape.

Chemical Bonding - Question 8

Which species does not exist?    

Detailed Solution for Chemical Bonding - Question 8

Carbon does not have vacent d-orbials

Chemical Bonding - Question 9

The bond angle in H2S ( H-S-H) is:    

Detailed Solution for Chemical Bonding - Question 9

Bond angle decreases on moving down the group.

Chemical Bonding - Question 10

The pair of species having identical shape is:    

Detailed Solution for Chemical Bonding - Question 10

Both XeF2(sp3d) and CO2(sp) are linear molecules.

Chemical Bonding - Question 11

Which of the following are not correct?    

Detailed Solution for Chemical Bonding - Question 11

CO2 is linear molecule.

Chemical Bonding - Question 12

The incorrect statements regarding bonding molecular orbitals because:    

Detailed Solution for Chemical Bonding - Question 12

They have high electron density.

Chemical Bonding - Question 13

The correct increasing bond angles order is:    

Detailed Solution for Chemical Bonding - Question 13

Bond angles of CIF3,PF3,NF3 and BF3 are (1800,900),(1010),(1060) and (1200) respectively.

Chemical Bonding - Question 14

Which does not use sp3-hybrid orbitals in its bonding?    

Detailed Solution for Chemical Bonding - Question 14

BeF-involves sp2-hybridization.

Chemical Bonding - Question 15

Which does not have pyramidal geometry?

Detailed Solution for Chemical Bonding - Question 15

NO-3 has sp2-hybridization and prssesses coplanar or equilateral trianglular geometry.

Chemical Bonding - Question 16

The bond order of C+2 is:    

Detailed Solution for Chemical Bonding - Question 16

Molecular orbital configuration of,

Chemical Bonding - Question 17

Which species has lone pair on central atom?    

Detailed Solution for Chemical Bonding - Question 17

O has two lone pair of electrons.

Chemical Bonding - Question 18

Which of the following has lowest bond angle?

Detailed Solution for Chemical Bonding - Question 18

Bond angles of BeF2,H2O, NH3 and CH4 are 1800, 140031’,106050’,109082’ respectively.

Chemical Bonding - Question 19

The cyanide ion, CN- and N2 are isoelectronic. But in contrast to CN- , N2 is chemically insert, because of :    

Detailed Solution for Chemical Bonding - Question 19

Absence of polarity and high bond energy of N2 prevents it to react easily.

Chemical Bonding - Question 20

H2O has a net dipole moment, while BeF2 has zero dipole moment, because:    

Detailed Solution for Chemical Bonding - Question 20

H2O is sp3 d-hybridized;BeF2 is sp-hybridization.

Chemical Bonding - Question 21

Which is not characteristic of π-bond?    

Detailed Solution for Chemical Bonding - Question 21

Hybrid orbitals never form π-bond.

Chemical Bonding - Question 22

Which of the following is not isostructural with SiCI4?    

Detailed Solution for Chemical Bonding - Question 22

S in SCI4 is sp3 d-hybridized and possesses see-saw structure, whereas SiCI4 is tetrahedral.

Chemical Bonding - Question 23

Which of the following is not a correct statement?    

Detailed Solution for Chemical Bonding - Question 23

IF5 is square pyramid (sp3d2-hybridization in I); PCI5 is trigonal bipyramid (sp3d0hybridization in P)

Chemical Bonding - Question 24

Which shows the highest lattice energy?    

Detailed Solution for Chemical Bonding - Question 24

Smaller the size of cation, more is ionic character, more is attraction among ions.

Chemical Bonding - Question 25

Which expected to show paramgnetism?    

Detailed Solution for Chemical Bonding - Question 25

CIO2 has 33 electrons, i.e., one unpaired.

Chemical Bonding - Question 26

Four diatomic species are listed below in different sequence. Which of these represents the correct order of their increasing bond order?

Detailed Solution for Chemical Bonding - Question 26

Bond order 

Chemical Bonding - Question 27

Some of the properties of the two species,NO-3 and H3O+  are describe below. Which one of them is correct?    

Detailed Solution for Chemical Bonding - Question 27

Chemical Bonding - Question 28

The total number of π-bond electrons in the following structure is:

Detailed Solution for Chemical Bonding - Question 28

Count σ and π bonds

Total π bonds = 4
Number of π-electrons =2 x Number of π-bonds 

Chemical Bonding - Question 29

Give the correct order of initials True (T) or False (F) for the following statements.    
(I)    sp3 hybrid orbitals are 900 to one other.    (II)    Adjacent sp3d2 hybrid orbitals are at 900 to one another.    (III)    sp2 hybrid orbitals are at 1200 to one other    (IV)       Bond order of N-O bond in NO-3  is 4/3.         

Detailed Solution for Chemical Bonding - Question 29

 NO-3has resonance so, bond order is 4/3 

Chemical Bonding - Question 30

Which of the following statements is not correct regarding NO2 molecule?    

Detailed Solution for Chemical Bonding - Question 30

Dimer of NO2 is N2O4 which is colourless.        

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