Question # 1

A solution whose molarity is known is called:

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Dilute solution

Concentrated solution

Saturated solution

Molar solution

____________ solids are arranged in 3 dimension.

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Crystalline

Amorphous

Both

None

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

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1

2

3

4

Which one is not a property of electrolytic cell?

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It consists of one complete cell

Anode has +ve charge

It converts electrical energy into chemical one

Anode has -ve charge

Which one of the following is an electron deficient molecule?

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HN₃

BF₃

N₂

O₂

Oxidation means

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Gain of oxygen

Removal of oxygen

Gain of hydrogen

Gain of electrons

Tyndall effect is shown by:

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sugar solution

paints

jelly

chalk solution

Brine is an aqueous solution of

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NaCI

NaOH

AgNO3

CaO

Which one of the following will show negligible effect of temperature on its solubility?

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KCI

KNO³

NaNO³

NaCI

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

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CH⁴

KBr

CO²

H₂O

________________ elements were discovered in year 1800.

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34

35

36

37

___________ is a pure substance that can be broken down.

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Matter

Element

Mass

Mixture

It is a strong electrolyte

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H2O

CH3COOH

NaOH

C6H6

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