Question # 1

The bond angle in NH3 molecule is

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109.5^o

107.5^o

104.5^o

106^o

Which has zero potential energy.

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When H atom is independent

When two H atoms combine to form H2 molecule

When two H atoms super impose to each other

When two H atoms have weak attraction between them

Which of the following molecules contain six bonding electrons.

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CH4

CO2

BF3

H2S

Those elements whose electronegativities are 1.2 and 3.2, react to form

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Ionic bond

Covalent bond

Gaseous substance

Definiting a liquid substance

Which of the following is a polar molecule

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CCl4

HCl

BF3

CO2

The bond order of N2 molecule is.

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1

2

3

4

The tendency of an tom to attract shared pair of electron towards itself is called its.

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Ionization energy

Electronegativity

Electron affinity

dipole moment

Which molecule has sG2 hybridization.

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CH4

C2H4

C2H2

C2H5

Which of the following molecule has zero dipole moment.

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NH3

CHCl3

H2O

BF3

Which bond has more ionic characters in it.

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C - F

N - F

O - F

F - F

Percentage ionic character of HF is.

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100%

80%

43%

57%

Carbon atom in methane in hybridized.

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sp3

Sp2

Sp

dsp3

Bond energy depends upon

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Electronegativity

Size of atom

Bond length

All of these

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

Which one of the following has the greater ionic characters in it.

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HF

HCl

H2O

H2

The shape of Sncl2 molecule is.

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Linear

Angular

Trigonal planar

Tetrahedral

Ionic bond is formed by combination of groups

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IA and VIII

II A and VII A

IV A and VA

VIA and VII A

In methanol, bond between carbon and oxygen.

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Ionic

Non polar

Polar

Co - ordinate

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