Docsity
Docsity

Prepare for your exams
Prepare for your exams

Study with the several resources on Docsity


Earn points to download
Earn points to download

Earn points by helping other students or get them with a premium plan


Guidelines and tips
Guidelines and tips

Self evaluation test for chemical bonding, Exercises of Chemistry

27 multiple-choice questions and answers related to chemical bonding. The questions cover topics such as the nature of chemical bonds, ionic and covalent compounds, dipole moments, hybridization, and VSEPR theory. The questions are useful for students studying chemistry at the high school or university level.

Typology: Exercises

2021/2022

Available from 05/24/2022

amit-jangra-3
amit-jangra-3 🇮🇳

90 documents

1 / 4

Toggle sidebar

This page cannot be seen from the preview

Don't miss anything!

bg1
Chemical Bonding 149
1. Nature of the bond formed between two elements
depends on the
(a) Oxidation potential (b) Electronegativity
(c) Ionization potential (d) Electron affinity
2. Two elements
X
and
Y
have following electronic
configurations
262622 4,33,22,1 spspssX
and
52622 33,22,1 pspssY
. The expected compound
formed by combination of
X
and
Y
is [BHU 1990]
(a)
2
XY
(b)
25YX
(c)
52YX
(d)
3. Electricity do not pass through ionic compounds
(a) In solution (b) In solid state
(c) In melted state (d) None of these
4. From the following which compound on heating
readily sublimes
(a)
NaCl
(b)
2
MgCl
(c)
2
BaCl
(d)
3
AlCl
5. Which one in the following contains ionic as well
as covalent bond [IIT 1979; CPMT 1983; DPMT 1983]
(a)
4
CH
(b)
2
H
(c)
KCN
(d)
KCl
6. The solution of sugar in water contains
[NCERT 1972; MP PET 2000]
(a) Free atoms
(b) Free molecules
(c) Free ions
(d) Free atoms and free molecules
7. In which of the following reactions, there is no
change in the valency [NCERT 1974; CPMT 1971, 78]
(a)
KClKClOKClO 43 34
(b)
SOHSHSO 322 222
(c)
224422 OHBaSOSOHBaO
(d)
22 22 BaOOBaO
8. The octet rule is not followed in [BHU 1981]
(a)
2
F
(b)
NaF
(c)
2
CaF
(d)
3
BF
9. Sodium chloride is an ionic compound whereas
hydrogen chloride is a gas because [KCET 2002]
(a) Sodium is reactive
(b) Covalent bond is weaker than ionic bond
(c) Hydrogen chloride is a gas
(d) Covalent bond is stronger than ionic bond
10. Which one of the following molecules has a
coordinate bond [CPMT 1988, 94]
(a)
ClNH 4
(b)
3
AlCl
(c)
NaCl
(d)
2
Cl
11. Co-ordinate bond is absent in [RPMT 2002]
(a)
4
BH
(b)
2
3
CO
(c)
OH 3
(d)
4
NH
12. The dipole moment of chlorobenzene is 1.73 D.
The dipole moment of
p
-dichlorobenzene is
expected to be
[CPMT 1991]
(a) 3.46 D (b) 0.00 D
(c) 1.73 D (d) 1.00 D
13. Polarization of electrons in acrolein may be
written as
[IIT 1988]
(a)
OHCCHHC
2
(b)
OCHCHHC 2
(c)
OCHHCHC
2
(d)
OCHCHHC 2
14. The order of dipole moments of the following
molecules is
[Roorkee 2000]
(a)
43223 CClClCHClCHCHCl
(b)
43322 CClCHClClCHClCH
(c)
43223 CClCHClClCHClCH
(d)
43322 CClClCHCHClClCH
15. The electronegativity of
NOHC ,,,
and
S
are 2.5,
2.1, 3.5, 3.0 and 2.5 respectively. Which of the
following bond is most polar [EAMCET 1986]
(a)
HO
(b)
HS
(c)
HN
(d)
HC
16. Which of the following bond has the most polar
character
[DPMT 1982; CBSE PMT 1992; C PMT 1999]
(a)
OC
(b)
BrC
(c)
SC
(d)
FC
17. The geometry of
SH2
and its dipole moment are[IIT 1999]
(a) Angular and non-zero (b) Angular and zero
(c) Linear and non-zero (d) Linear and zero
pf3
pf4

Partial preview of the text

Download Self evaluation test for chemical bonding and more Exercises Chemistry in PDF only on Docsity!

1. Nature of the bond formed between two elements

depends on the

(a) Oxidation potential (b) Electronegativity

(c) Ionization potential (d) Electron affinity

2. Two elements X

and Y

have following electronic

configurations

2 2 6 2 6 2

X  1 s , 2 s 2 p , 3 s 3 p , 4 s and

2 2 6 2 5

Y  1 s , 2 s 2 p , 3 s 3 p. The expected compound

formed by combination of X and Y is [BHU 1990]

(a)

2

XY

(b)

5 2

XY

(c)

2 5

XY (d)

5

XY

3. Electricity do not pass through ionic compounds

(a) In solution (b) In solid state

(c) In melted state (d) None of these

4. From the following which compound on heating

readily sublimes

(a) NaCl (b)

2

MgCl

(c)

2

BaCl (d)

3

AlCl

5. Which one in the following contains ionic as well

as covalent bond [IIT 1979; CPMT 1983; DPMT 1983]

(a)

4

CH (b)

2

H

(c) KCN (d) KCl

6. The solution of sugar in water contains

[NCERT 1972; MP PET 2000]

(a) Free atoms

(b) Free molecules

(c) Free ions

(d) Free atoms and free molecules

7. In which of the following reactions, there is no

change in the valency [NCERT 1974; CPMT 1971, 78]

(a) KClOKClOKCl

3 4

(b) SO 2 H S 2 HO 3 S

2 2 2

(c)

2 2 4 4 2 2

BaOHSOBaSOHO

(d)

2 2

2 BaOO  2 BaO

8. The octet rule is not followed in [BHU 1981]

(a)

2

F (b) NaF

(c)

2

CaF (d)

3

BF

9. Sodium chloride is an ionic compound whereas

hydrogen chloride is a gas because [KCET 2002]

(a) Sodium is reactive

(b) Covalent bond is weaker than ionic bond

(c) Hydrogen chloride is a gas

(d) Covalent bond is stronger than ionic bond

10. Which one of the following molecules has a

coordinate bond [CPMT 1988, 94]

(a) NH Cl

4

(b)

3

AlCl

(c) NaCl (d)

2

Cl

11. Co-ordinate bond is absent in [RPMT 2002]

(a)

4

BH (b)

2

3

CO

(c)

H O

3

(d)

4

NH

12. The dipole moment of chlorobenzene is 1.73 D.

The dipole moment of p - dichlorobenzene is

expected to be

[CPMT 1991]

(a) 3.46 D (b) 0.00 D

(c) 1.73 D (d) 1.00 D

13. Polarization of electrons in acrolein may be

written as

[IIT 1988]

(a) C HCHCHO

 

 

2

(b)

 

  

 

C H CH CH O

2

(c) C HCHCHO

 

 

2

(d)

 

  

 

C H CH CH O

2

14. The order of dipole moments of the following

molecules is

[Roorkee 2000]

(a)

3 2 2 3 4

CHClCHClCHClCCl

(b)

2 2 3 3 4

CH ClCHClCHClCCl

(c)

3 2 2 3 4

CH ClCHClCHClCCl

(d)

2 2 3 3 4

CH ClCHClCHClCCl

15. The electronegativity of C , H , O , N

and S

are 2.5,

2.1, 3.5, 3.0 and 2.5 respectively. Which of the

following bond is most polar [EAMCET 198

(a) OH (b) SH

(c) NH

(d) CH

16. Which of the following bond has the most polar

character

[DPMT 1982; CBSE PMT 1992; CPMT 1999]

(a) CO (b) CBr

(c) CS (d) CF

17. The geometry of HS

2

and its dipole moment are [IIT 1999]

(a) Angular and non-zero (b) Angular and zero

(c) Linear and non-zero (d) Linear and zero

18. How many  and bonds are there in the

molecule of tetracyanoethylene

C N

C N

C C

N C

N C

[NCERT 1980; MP PMT 1986, 95;Orissa JEE 1997]

(a) Nine  and nine  (b) Five  and nine

(c) Nine  and seven  (d) Five  and eight

19. The shape of

H O

3

ion is [EAMCET 1993; CPMT

2001]

(a) Linear (b) Angular

(c) Trigonal planar (d) Triangular pyramidal

20. The hybridization in sulphur dioxide is [IIT 1986;

DPMT 1990]

(a) sp

(b)

3

sp

(c)

2

sp (d)

2

dsp

21. The number and type of bonds between two

carbon atoms in

2

CaC

are [IIT 1996]

(a) One sigma ( )and one pi ( )bonds

(b) One sigma ( )and two pi ( )bonds

(c) One sigma ( )and one and a half pi ( )bonds

(d) One sigma ( )bond

22. Which of the following resonating structures of

N O

2

is the most contributing [Roorkee Qualifying 1998]

(a) NNO (b) NNO

(c) NNO (d) NNO

23. The hybridization of atomic orbitals of nitrogen in

2

NO ,

3

NO , and

4

NH are [IIT Screening 2000]

(a)

3

sp , sp and

2

sp respectively

(b)

2

sp , sp and

3

sp respectively

(c) sp , sp

2

and

3

sp respectively

(d)

2 3

sp , sp and sp respectively

24. The molecule having one unpaired electron is

[IIT 1985; MP PMT 1989]

(a) NO (b) CO

(c)

CN (d)

2

O

25. The geometry of , 3

ClO according to valence shell

electron pair repulsion (VSEPR) theory will be

[KCET 1996; MP PET 1997]

(a) Planar triangle (b) Pyramidal

(c) Tetrahedral (d) Square planar

26. Which of the following halogens has the highest

bond energy [CPMT 1988]

(a)

2

F

(b)

2

Cl

(c)

2

Br (d)

2

I

27. What bond order does

2 

2

O have [Pb. PMT 2001]

(a) 3 (b) 2

(c) 1 (d) 1/

28. In the process, OOe

  2

2 2

the electron lost is

from

[Orissa JEE 2002]

(a) Bonding -orbital (b) Antibonding -orbital

(c)

z

2 p

orbital (d)

x

2 p

orbital

29. The maximum number of hydrogen bonds formed

by a water molecule in ice is

[MP PET 1993; AFMC 2002;UPSEAT 1999, 2001, 02]

(a) 4 (b) 3

(c) 2 (d) 1

30. Hydrogen bonding is not present in

[AIIMS 1998; MP PET/PMT 1998]

(a) Glycerine

(b) Water

(c) Hydrogen sulphide

(d) Hydrogen fluoride

31. The bonds in [ ( )]

4 6

K FeCN are [EAMCET 199

(a) All ionic

(b) All covalent

(c) Ionic and covalent

(d) Ionic, covalent and coordinate covalent

32. In which of the following ionic, covalent and

coordinate bonds are present [UPS

(a) Water

(b) Ammonia

(c) Sodium cyanide

(d) Potassium bromide

molecule is tetrahedrally attached with other

water molecule.

30. (c) Hydrogen bonding is present in molecules

which have F , O, or N atoms.

31. (d) Structure of [ ( )] 4 6

K FeCN is

4

4

C N

C N

C N

C N

Fe

C N

C N

K

32. (c) Sodium cyanide contain ionic, covalent and

coordinate bond.

H

H

H

O

H

H

O

H

H

H

O

H

O

H

H

H

O

H

O

H

H

O

H

O

O

H

H