Which one of the following is the likely bond angles of sulphur tetrafluoride molecule ?

(a)

120^o,80^o

(b)

109^o,28

(c)

90^o

(d)

89^o,117^o

According to Valence bond theory, a bond between two atoms is formed when _____________

(a)

fully filled atomic orbitals overlap

(b)

half filled atomic orbitals overlap

(c)

non- bonding atomic orbitals overlap

(d)

empty atomic orbitals overlap

Hybridisation of central atom in PCl₅ involves the mixing of orbitals __________

(a)

s, p_x, p_y, d_x2 , d_x²-y²

(b)

s, p_x . p_y, p_xy . d_x²-y²

(c)

s, p_x, p_y, p_z, d_x²-y²

(d)

s, p_x, p_y, d_xy, d_x²-y²

Which one of the following is diamagnetic ?

(a)

O₂

(b)

\(O_2^{2-}\)

(c)

\(O_2^+\)

(d)

None of these

Shape and hybridisation of IF₅ are ________

(a)

Trigonal bipyramidal, Sp³d²

(b)

Trigonal bipyramidal, Sp³d

(c)

Square pyramidal, Sp³d²

(d)

Octahedral, Sp³d²

Xe F₂ is isostructural with _____________

(a)

SbCl₂

(b)

BaCl₂

(c)

TeF₂

(d)

ICI₂^-

Non- Zero dipole moment is shown by __________

(a)

CO₂

(b)

p-dichlorobenzene

(c)

carbontetrachloride

(d)

water

Identify the molecule which has more than 8 electrons in outermost orbit^-

(a)

SO₃

(b)

SO₂

(c)

P₂O₅

(d)

All of these

The total number of lone pair present in XeF₄ is ____________

(a)

10

(b)

12

(c)

14

(d)

16

Find out the most favourable condition for electrovalent bonding.

(a)

Low ionization potential of one atom and high electron affinity of the other atom.

(b)

High electron affinity and high ionisation potential of both the atoms.

(c)

Low electron affinity and low ionisation potential of both the atoms.

(d)

High ionisation potential of one atom and low electron affinity of the other atom.

Which of the following is not true about covalent compounds?

(a)

They undergo molecular reactions

(b)

They possess low melting and boiling points

(c)

They undergo ionic reactions

(d)

They exhibit isomerism

The sharing of valence electrons between the atoms will lead to the formation of_____

(a)

Ionic bond

(b)

Covalent bond

(c)

Co-ordinate bond

(d)

Hydrogen bond

The geometry of electron pairs around S in SF₆ is ______________

(a)

Octahedral

(b)

Trigonal bipyramidal

(c)

Square pyramidal

(d)

Linear

Which molecule among the following has both polar and non-polar covalent bond?

(a)

\({ NH }_{ 4 }^{ + }\)

(b)

H₂O₂

(c)

HCI

(d)

CH₄

Which of the following is a polar molecule?

(a)

BF₃

(b)

SiF₄

(c)

SF₄

(d)

XeF₄

In the formation of ethylene molecule, the carbon atom makes use of___________ hybridisation.

(a)

sp

(b)

Sp²

(c)

sp³

(d)

dsp²

Statement I : Bond angle of BF₃ and NF₃ are different
Statement II : Both the molecules are having different shapes.

(a)

Both statement I and II are true and statement II explains statement I. 

(b)

Both statement I and II are true but statement I does not explain statement II.

(c)

Statement I is true, but statement II is false

(d)

Both-statement I and II are false

CO₂ is isostructural with ___________

(a)

C₂H₂

(b)

SnCl₂

(c)

N0₂

(d)

SO₂

The atomic orbitals involved in hybridisation of SF₆ molecule is __________

(a)

3s, 3_px' 3_py, 3_pz,3d_z

(b)

4s, 4_px, 4_py, 4_pz,3d_x2-y2,3d_xy 

(c)

3_s, 3_px, 3_py, 3_pz,3\({ d }_{ z }^{ 2 }\),d_x2-y2

(d)

3s, 3_px,3_py, 3d_xy,3d_yz, 3d_xy

Which among the following cannot be formed?

(a)

H₂

(b)

He₂

(c)

N₂

(d)

O₂