Question # 1

Sum of PH and POH of a solution is:

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7

14

16

18

Basic solution have pH value.

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Less than 7

Greater than 7

equal to 7

None of these

Which of following is not amphoteric?

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H₂O

NH₃

HCO₃

SO₄

Example of complex salt is.

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Zinc sulphate

Potash alum

Potassium ferrocynide

Sodium Phosphate

Which acid is found in Ant sting?

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Citric Acid

Formic Acid

Uric Acid

Sulphuric acid

Which is a Lewis base?

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H⁺

NH₄

BF₃

AlCl₃

According to Lewis concept a base is a substance which can donate.

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Proton

Electron pair

Neutron

Electron

Bronsted and Lowry presented their theories of acids and bases in

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1785

1787

1923

1925

Which one gas is liberated when alkalies react with ammonium salts?

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O₂

CO₂

H₂

NH3

Which acid is used an electrolyte in lead storage battery?

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H₂SO₄

HNO₃

HCl

CH₃COOH

Natural source of citric acid is:

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Rancid butter

Fats

Lemon

Sour milk

Acid reacting with metal sulphides, liberate gas.

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Oxygen

Hydrogen

Hydrogen Sulphide

Hydrogen Oxide

Jabir Bin Haiyan prepared.

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Nitric Acid

Hydrochloric acid

Sulphueric Acid

All of these

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