Jee 2014 Booklet2 Hwt Chemical Bonding

Vidyamandir Classes

DATE :

  MARKS :    10 

IITJEE :

NAME :

TIME : 25 MINUTES

TEST CODE : C. Bond [1]

ROLL NO.

START TIME :

END TIME :

STUDENT’S SIGNATURE :

TIME TAKEN:

PARENT’S SIGNATURE :

 This test contains a total of 10 Objective Type Questions.  Each question carries 1 mark. There is NO NEGATIVE marking. Choose the correct alternative. Only one choice is correct. 1.

In which of the following compounds are the bond angles close to 90 ? (A)

2.

3.

7.

8.

9.

10.

(C)

H 2S

(D)

All of these

(D)

HF(g)

NO2

(B)

NO2

(C)

NO2

(D)

PbCl 2

Which of the following has a geometry different from the other three species (having the same geometry) ?

BF4

(B)

SO24

(C)

XeF4

(D)

PH 4

Which of the following species is isoelectronic with CO2 ?

N 3

(B)

CNO 

(C)

NCN 2

(D)

All of these

In Be2 the bond order is (A) one

(B)

zero

(C)

two

(D)

one- half

(C)

(SO3 )3

(D)

H 2 S2 O 6

(A) 6.

SF6

The species which has a liner structure is :

(A) 5.

(B)

Which of the following molecules has the maximum value of bond energy ? CO(g) (A) (B) (C) F2 (g) N 2 (g)

(A) 4.

PH 3

Which of the following molecules has an S – S bond ? (A) (B) H 2S2 O8 H 2 S2 O 7 The p  d back bonding occurs between oxygen and : (A)

phosphorus in P4 O10

(B)

fluorine in HFO

(C)

nitrogen in N 2 O5

(D)

carbon in CO2

The hybridization and geometry of BrF3 molecules are : (A)

sp3d and T – shaped

(B)

sp3d 2 and tetrahedral

(C)

sp3d and bent

(D)

None of these

(C)

CH 3

The shape of NH 3 is very similar to that of : (A)

BH 3

VMC/Chemical Bonding

(B)

CH 3

38

(D)

SO24

HWT/Chemistry

Vidyamandir Classes

DATE :

  MARKS :    10 

IITJEE :

NAME :

TIME : 25 MINUTES

TEST CODE : C. Bond [2]

ROLL NO.

START TIME :

END TIME :

STUDENT’S SIGNATURE :

TIME TAKEN:

PARENT’S SIGNATURE :

 This test contains a total of 10 Objective Type Questions.  Each question carries 1 mark. There is NO NEGATIVE marking. Choose the correct alternative. Only one choice is correct. 1.

In CH 2  CH  CH 2  C  CH , the C2  C3 bond involves the hybridization of the type : (A)

2.

3.

sp3  sp3

(C)

sp  sp3

NH 3 combines with H 

(B)

AIH 3 combines with H 

(C)

NH 3 forms NH 2

(D)

SiF4 froms SiCl 4

(C)

NO2

(B)

CS2

SnCl 2

no unshared pair of electrons three unshared pair of electrons

BeCl 2

(B) (D)

four unshared pairs of electrons two unpaired electrons

(B)

12 bonds and 3 bonds

(D)

9 bonds and 3 bonds

The benzene molecule contains : (A)

6

bonds and 3 bonds

(C)

6 bonds and 6 bonds

7.

Which of the following hybrid orbitals has the highest value of electronegativity ? (A)

sp3

(B)

sp2

By hybridization, we mean hybridization of : (A) orbitals (C) both orbitals and electrons

(D)

sd 2

SiCl 4

(D)

CO

Pb2

(D)

Xe2

(C)

sp

(B) (D)

electrons None of these

(C)

The octet rule is not obeyed in : (A)

10.

(D)

In the linear I3 (tri-iodide ion), the central iodine atom contains :

In an sp-hybridized carbon atom, (A) two p orbitals remain unhybridized and one p orbital gets hybridized (B) all the three p orbitals get hybridized (C) one p orbital remains unhybridized and two p oribitals get hybridized (D) None of the above is true

9.

sp2  sp3

The shape of NH 2 is like that of :

6.

8.

(D)

(A)

(A) (C) 5.

(B)

The hybridization of the centre atom will change when :

(A) 4.

sp  sp2

CO 2

(B)

Zn 2 

Which of the following ions has an (18 + 2) electronic configuration ? (A)

Cu 

VMC/Chemical Bonding

(B)

Fe3

(C)

39

HWT/Chemistry

Vidyamandir Classes

DATE :

  MARKS :    10 

IITJEE :

NAME :

TIME : 25 MINUTES

TEST CODE : C. Bond [3]

ROLL NO.

START TIME :

END TIME :

STUDENT’S SIGNATURE :

TIME TAKEN:

PARENT’S SIGNATURE :

 This test contains a total of 10 Objective Type Questions.  Each question carries 1 mark. There is NO NEGATIVE marking. Choose the correct alternative. Only one choice is correct. 1.

Which of the following ions has a pseudo-inert-gas configuration? (A)

Zn 2 

(B)

Cu 

(C)

Ag 

2.

Which of the following statements is incorrect? (A) A sigma bond has no free rotation around its axis. (B) Two p orbitals always overlap laterally. (C) There can be more than one sigma bond between two atoms. (D) All of these

3.

The number of nonbonding electrons in N 2 is (A) 4 (B) 10

4.

5.

6.

12

Which of the following compounds is expected to be the most ionic? (A) (B) (C) PbCl 2 PbCl 4 CCl 4

All of these

(D)

14

(D)

SiCl 4

Which of the following pairs can form a compound with the maximum ionic character ? (A) Na and Cl (B) Cs and F (C) Cs and I (D)

Na and F

A CaC2 molecules has (A) (C)

7.

(C)

(D)

one  bond and one  bond one  bond and one and a half  bonds

(B) (D)

one  bond and two  bonds one  bond

What would be the hybridization state of the two resulting carbon atoms after the C – C bond C2 H 6 undergoes heterolytic fission ? (A)

sp2 both

(B)

sp3 both

(C)

sp2 and sp3

(D)

sp and sp2

8.

A simplified alpplication of MO theory to the hypothetical molecule OF would give its bond order as : (A) 2.0 (B) 1.5 (C) 1.0 (D) 0.5

9.

Which of the following pairs have identical values of bond order? (A)

10.

N 2 and O22

(B)

NO  and N 2

(C)

CN  and O2

Which of the following hydrogen halides has the lowest value of dipole moment ? (A) HF (B) HCl (C) HBr

VMC/Chemical Bonding

40

(D)

CO and O 2

(D)

HI

HWT/Chemistry

Vidyamandir Classes

DATE :

  MARKS :    10 

IITJEE :

NAME :

TIME : 25 MINUTES

TEST CODE : C. Bond [4]

ROLL NO.

START TIME :

END TIME :

STUDENT’S SIGNATURE :

TIME TAKEN:

PARENT’S SIGNATURE :

 This test contains a total of 10 Objective Type Questions.  Each question carries 1 mark. There is NO NEGATIVE marking. Choose the correct alternative. Only one choice is correct. 1.

Among the following, the species which has the lowest value of bond angle is : (A)

2.

NO2

(C)

NO2

(D)

N 2O

SO2 and SO3

(B)

SnCl 2 and O3

(C)

SnCl 4 and XeF4

(D)

XeO3 and I3

(D)

All of these

(D)

Neon

Which of the following species is planar and has a bond angle very close to 120 ? (A)

4.

(B)

In which of the following pairs do the molecules have identical shapes ? (A)

3.

NO2

BF3

(B)

NO3

(C)

CO32

Which of the following elements can form both ionic and covalent bonds ? (A) Argon (B) Hydrogen (C) Iron

5.

In which of the following compounds are the molecules joined by intermolecular hydrogen bonds ? (A) 4-Nitrophenol (B) 2-Nitrophenol (C) 2-Nitrobenzoic acid (D) None of these

6.

Which of the following molecules is formed without following the octet rule ? (A)

7.

8.

10.

(B)

Water can form a maximum of : (A) four hydrogen bonds (C) one hydrogen bond

IF7

(C)

SF6

(D)

(B) (D)

two hydrogen bonds six hydrogen bonds

(B) (D)

3 unpaired electrons No unpaired electron

All of these

The N 2 H 4 molecule contains : (A) (C)

9.

BeCl2

2 unpaired electrons 4 unpaired electrons

During the formation of an ionic bond, the cation may achieve : (A)

ns2 or ns2 np6 configuration

(B)

pseudo noble – gas – configuration

(C)

inert-pair configuration

(D)

All of these configurations

In diborane (B2 H 6 ) , the bond formed between B and B is called : (A) (C)

sigma bond banana bond

VMC/Chemical Bonding

(B) (D)

41

2-centre 2-electron bond coordinate bond

HWT/Chemistry

Vidyamandir Classes

DATE :

  MARKS :    10 

IITJEE :

NAME :

TIME : 25 MINUTES

TEST CODE : C. Bond [5]

ROLL NO.

START TIME :

END TIME :

STUDENT’S SIGNATURE :

TIME TAKEN:

PARENT’S SIGNATURE :

 This test contains a total of 10 Objective Type Questions.  Each question carries 1 mark. There is NO NEGATIVE marking. Choose the correct alternative. Only one choice is correct. 1.

A covalent bond is formed between : (A) An electronegative element and an electropositive element (B) An electronegative element and an electronegative element (C) An electropositive element and an electropositive element (D) None of these

2.

In a P4 molecule, the P – P – P bond angle is : (C)

60

(D)

between 60 and 90

The total number of covalent bonds present in the NO2 ion is : (A) three (B) two (C)

four

(D)

six

(C)

He

(D)

O22

(C)

zero

(D)

+2

(D)

XeOF4

(A) 3.

4.

7.

O2

+1

(B)

1

sp and sp2

(B)

sp and sp3

(C)

sp2 and sp3

(D)

sp and sp

Which of the following pairs of species have identical structures and shapes ?

NO2 and NO2

(B)

PCl5 and BrF5

(C)

XeF4 and ICl 4

(D)

XeF4 and XeO 4

(C)

SO24

(D)

All of these

(B) (D)

Molecular nitrogen is paramagnetic Molecular oxygen is diamagnetic

Which of the following ions has resonating structure ? (A)

10.

(B)

In the solid state N 2 O5 , exists as NO2 NO3 . The hybridizations around the N atoms in NO2 and NO3 are, respectively :

(A) 9.

N2

Which of the following molecules has a square pyramidal structure ? (A) (B) (C) XeO2 F2 XeOF2 XeO3 F2

(A) 8.

109

In H 3O  the formal charge on the oxygen atom is : (A)

6.

(B)

Paramagnetism is observed in : (A)

5.

120

SO32

(B)

PO34

Which one of the following statements is correct ? (A) Molecular hydrogen is paramagnetic (C) Molecular oxygen is paramagnetic

VMC/Chemical Bonding

42

HWT/Chemistry