Question # 1

Which salt is used for the manufacture of detergents, pulp and paper?

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NaCl

Na₂CO₃

Na₂SiO₃

NaCl

The color of Fe(OH)₂ ppt is.

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White

Brown

Muddy green

Blue

Which one is not a characteristic of an acid:

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it turns red litmus blue

it reacts with base to form salt and water

Its aqueous solution conduct electric current

it has sour taste

Acetic acid is used for:

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Elching designs

Clearing metals

Flavouring food

Making explosives

Which acid is used an electrolyte in lead storage battery?

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H₂SO₄

HNO₃

HCl

CH₃COOH

What is pOH of 0.01 M solution of KOH?

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3

11

2

4

Lactic acid founds in:

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Citrus fruits

Sour milk

Rancid Butter

Apple

Acidic solutions have pH value.

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Less than 7

Greater than 7

equal to 7

None of these

___________ is not an acid:

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HCl

NH₃

H₂CO₃

H₂SO₄

_______ is the king of chemicals.

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Hydrochloric acid

Nitric Acid

Sulphuric acid

Phosphoric acid

Which is used to manufacture of soap?

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NaOH

Ca(OH)₂

KOH

Mg(OH)₂

The product of any Lewis acid-base reaction is a single specie called:

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free radical

adduct

molecular ion

conjugate

A salt always

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Contain ions

Contains water of crystallization

Dissolves in water

Forms crystals which conduct electricity

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