Question # 1

For ________________ "like dissolves like".

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Metals

Bonds

Solubility

Nil

H° - H° has ________________ energy.

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Lower

Higher

Medium

Nil

________________ observed that formation of covalent bonds.

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Rutherford

G.N Lewis

Both a and b

Bohar's

When an electronegative element combines electropositive element the type of bonding is

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covalent

ionic

polar covalent

coordinate covalent

The no. of Ion pair/pairs in ammonia molecule is / are

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1

2

3

4

The shape of H2O is ________________

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Angular

Linear

Triangular

All of above

..................... is property of metals.

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Gases

Lustrous

Solids

Nil

The bond in covalent compound is ________________

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Covalent

Ionic

Dative

Couple

In ionic bond complete ________________ of electrons occurs.

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Paring

Sharing

Transfer

None

Which of the following compound is not directional in its bonding?

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CH⁴

KBr

CO²

H₂O

Identify when pair has polar covalent bonds:

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O₂ and Cl₂

H₂O and N₂

H₂O and C₂H₂

H₂O and HCI

Which one of the following is an electron deficient molecule?

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HN₃

BF₃

N₂

O₂

Which is an acceptor molecule/ion?

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N₂

O₂

H⁺

CH₄

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