Question # 1

The colour of litmus paper in strong acidic solution.

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Red

Blue

Yellow

Colourless

Arrhenius presented his concept about acids and bases in.

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1785

1787

1923

1930

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

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H2

CO₂

SO₂

NH₃

___________ is not an acid:

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HCl

NH₃

H₂CO₃

H₂SO₄

A conjugate base is a specie formed by donating a.

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Proton

Electron pair

Neutron

Electron

Binary compounds of oxygen such as CO2 and SO2 were names as acids by;

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Jabir Bin Hayan

Lavoisier

Al- Jahiz

Sir Humphrey Davy

Which acid is used an electrolyte in lead storage battery?

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H₂SO₄

HNO₃

HCl

CH₃COOH

According to Bronsted and Lowry concept a base is a substance that can accept.

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Proton

Electron pair

Neutron

Electron

A substance which can behave as an acid as well as a base is called.

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Acid

Base

Amphoteric

Neutral

Acetic acid is a weak acid because it.

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Is used in cooking and flavouring food.

Has very low pH

Is not fully ionized

Does not contain any hydrogen ions.

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