Question # 1

Fluorine molecule (F₂) is formed by the overlap of

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s - s orbital

s - p orbital

p - p head on overlapping of orbitals

p - p parallel overlapping of orbitals

The shape of H₃O is

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Tetrahedral

Angular

Trigonal planer

Pyramidaj

Which of the following molecules has a co-ordinate covalent bond

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NH₄CI

NaCI

HCI

AICI₃

In methanol, bond between carbon and oxygen.

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Ionic

Non polar

Polar

Co - ordinate

Which pair are iso electronic.

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Na+ and Cl-

Na+ and Mg+2

N-3 and P-3

H+ and H-

In a group of periodic table, ionization energy.

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Decreases

Increases

Remains same

First increases than increases

Ionic compound do nto show the phenomenon of Isomerism because bond are.

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Directional and rigid

Non directional and rigid

Non directional and non rigid

All above

VSEPR theory was proposed by

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Nyholn and Gillespie

Kossel

Lewis

Sidwick

The molecular shape of SO3 is.

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Triangular planar

Tetrahedral

Pyramidal

Linear

SP^3-hybridization in important in describing the bonding in

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Which one of the following correctly describe the shape of NH3 molecules.

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tetrahedral

Pyramidal

Angular

Square planar

The shielding effect of the inner electrons is responsible for

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Increasing ionization energy values

Decreasing ionization energy values

Increasing electron affinity

Increasing electonegativity

Which bond has more ionic characters in it.

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C - F

N - F

O - F

F - F

A molecule has two ions pairs and two bond pairs around the central atom. The shape of molecule is.

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Linear

Pyramidal

Angular

Tetrahedral

Which of the following species has unpaired electrons in anti-bonding molecular orbitals

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O₂⁺²

N₂^-2

B₂

F₂

Which molecules is 100% covalent

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H2

H2O

HF

NH3

Which molecule has sG2 hybridization.

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CH4

C2H4

C2H2

C2H5

In which molecule all atoms are coplanar.

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CH4

BF3

NH3

PH3

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