Question # 1

___________ is not an acid:

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HCl

NH₃

H₂CO₃

H₂SO₄

The value of constant of ionic product of water Kw at 25 C.

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1.0 x 10^-4

1.0 x 10¹⁴

1.0 x 10^-4

1.0 x 10⁴

Acids have taste

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Bitter

Seetish

Sour

Saltish

Bases gave taste:

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Bitter

Sweetsh

Sour

Saltish

When acid reacts with sulphites and Bi sulphates which gas is evolved?

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H2

CO₂

SO₂

NH₃

Which one is Lewis Acid?

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BF₃

AICI₃

FeCl₃

All of these

Which one of the mineral acid.

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HCl

H₂SO₄

HNO₃

All of these

pH of neutral solution is always.

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6

5

7

10

You want to dry a gas which one of the following salt you will use?

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CaCl₂

NaCl

CaO

Na₂SIO₃

According to Arrhenius concept acid is a substance which dissociates in aqueous solution to give.

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Hydrogen ions

Hydroxide ions

Both a and b

None of these

When acid react with carbonates and bicarbonates which gas is evolved?

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H2

CO₂

Cl₂

N₂

___________ is not mineral acid.

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HCl

CH₃COOH

H₂SO₄

HNO₃

Basic solution have pH value.

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Less than 7

Greater than 7

equal to 7

None of these

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