Question # 1

Elements having high ionization potential values are

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metals

non- metal

liquids

solid

What will be the shape of a molecule which containstwo sigma bond pairs and one lone pair?

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Linear

V shape

Tetragonal

Triangular

A molecule that has polar bonds but is overall non - polar

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IF

CCl4

PCI3

All

What is true for a molecule with standard geometry

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It lacks a Ip

It can't be a donor

It can be an acceptor

All

Among the following molecules, which one has coordinate covalent (dative) bond?

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CCI4

CO2

CO

CH4

Bonding in MgO is an example of

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lonic bond

Polar bond

Covalent bond

Coordination covalent bond

Bond will be covalent when electronegativity difference of bonded atom is

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Equal to 1.7

between 0.5 to l.7

Greater to 1.7

zero

Which of the following molecule has zero dipole moment?

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PCI3

BF3

NH3

H2O

Polarity of a molecule is expressed in terms of

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Bond strength

Dipole moment

Bond length

Shape

At compromise distance the forces dominating between atoms are

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repulsive forces

attractive forces

Dipole induced dipole force

H-bonding

Geometry of simple molecule with sp2 hybridization

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Triangular planar

Trigonal

Square planner

Pyramidal

Low IE is a symbol of

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high electronegativity

small size

High electron affinity

Metallic character

The no. of Ip's on oxygen in CO are

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1

3

4

2

Octet rule is not allowed in the formation of

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NF3

B.CF4

CCI4

PCI5

Energy of atom in compound is

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Higher than individual atom

Lower than individual atom

equal to individual atom

Impossible to predict

Covalent bonds are

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directional

Bidirectional

Multidirectional

Non directional

Which one is a non-polar compound?

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SnCl2

PH3

Gecl4

H2O

Which one of the following has zero dipole moment

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NH3

CHCI3

H2O

BF3

Total number of valence electrons in phosphonium ion (PH4-) is

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8

9

12

10

Greater shielding effect corresponds to ionization potential value

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greater

lesser

remain same

no effect

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